99 faits qui répondent à toutes vos questions commençant par "Pourquoi ??"

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Transcript

00:00In most countries, wedding dresses are white.

00:04But this tradition is not as old as you might think.

00:08Until the 19th century, wedding dresses were of any color.

00:12Basically, the bride was content to wear her most beautiful dress.

00:16Often, it was not white.

00:18You see, at the time, without running water, white was not the most practical color.

00:24The women of the aristocracy often married in red.

00:30It was Queen Victoria, in 1840, who changed the tradition by getting married in a white dress.

00:36It was quite understood at first because white was associated with mourning,

00:40and was therefore not a very festive color.

00:43However, less than a decade later, white was more widely accepted

00:48and began to be associated with purity and innocence.

00:52Still on the subject of marriages.

00:54Generally, the rings of engagement and marriage are worn on the ring finger.

00:58And the tradition goes back to Egypt, Greece and Ancient Rome.

01:03People wore their rings on this finger because they believed that there was a particular vein

01:08that led directly to the heart.

01:10This meant that the heart of the person in question was taken.

01:16Originally, the ring was worn on the right hand,

01:19because people thought that the left hand was the least virtuous.

01:23Some cultures ended up changing hands much later.

01:26And in some countries, people wear their rings on the right hand before marriage,

01:30and then change hands afterwards.

01:33The only constant is the ring finger.

01:35We now know that there is no vein leading directly to the heart,

01:38but the tradition persists.

01:41Almost everywhere in the world, pink is considered a girl's color,

01:45and blue is traditionally a boy's color.

01:49We wondered why it was so, and we did a little research.

01:53It turned out that at the beginning, it was the opposite.

01:55As a stronger color, pink was associated with boys,

01:58and blue, as a softer color, was attributed to girls.

02:04It was after that the colors were reaffected,

02:07because pink was considered a romantic shade of red.

02:10In the 19th century, the first feminist movements

02:12almost put an end to the assignment of colors to people.

02:15Then came the 1960s, when medicine learned to determine the sex of future babies,

02:19and parties began to be organized around this theme,

02:21the famous gender-reveal parties.

02:23Companies understood that they could make a lot of money

02:25by selling pink and blue articles related to the sex of the child.

02:28And that's how the rule was established,

02:30blue is for boys, and pink is for girls.

02:33The taste of blue raspberry.

02:35Or rather, ordinary raspberry,

02:37because blue raspberries simply do not exist.

02:40But for some reason,

02:41there are blue-flavored iced drinks.

02:45How is this done?

02:47Since the fruit itself is red,

02:49well, for practical reasons,

02:51and to make things less confusing.

02:54Imagine that you produce a pack of Eskimos,

02:56and that you attribute colors to flavors.

02:58An apple-flavored product will probably be green.

03:01A lemon-flavored product will be yellow.

03:03It's easy.

03:04Then there is the strawberry,

03:06so it should be red.

03:08There is also the cherry,

03:09well, still red.

03:11The watermelon, red.

03:12And now the raspberry, red once again.

03:15Wait, four reds, that's too many reds.

03:18How are people going to tell them apart?

03:20Thus, some raspberry ice creams have become blue,

03:23hence the origin of this fantasy flavor.

03:27Okay, now the mystery of eggs.

03:30For example, why are some white and others brown,

03:33and what does it depend on?

03:35Apparently, the color depends on the breed of the hen.

03:38White hens usually lay white eggs,

03:41brown hens, brown eggs.

03:44Even hens of the same breed can lay eggs of different colors,

03:47depending on the genes of the hen in question.

03:50If you wonder if there is a difference between white and brown eggs,

03:54the answer is no.

03:56It's just the color of the shell, nothing more.

04:00The egg yolk can also have a different appearance,

04:02yellow or orange.

04:03Its color depends on the food the hen eats.

04:06If its diet contains a large amount of yellow-orange pigments,

04:09then the egg yolk will be darker.

04:11Once again, there is no other difference than color,

04:13so don't worry.

04:18Can you hear a sound and perceive a specific color almost instantly?

04:23You could be part of a particular group of people,

04:26about 4% of the world population,

04:29capable of experiencing synesthesia.

04:32It's not you who imagines things.

04:34A new study tries to show that synesthesia is very real,

04:38and brain scanners attest to it.

04:40When these synesthetic people hear colors,

04:43the scans reveal that the parts of their brain

04:46linked to sight and sound communicate with each other.

04:49Since synesthesia seems to be of a genetic nature,

04:53some researchers have chosen three families

04:56where this characteristic was present.

04:58They then played with DNA sequencing

05:01and compared the genes of synesthetic members of the same family

05:04to those that were deprived of it.

05:06They still haven't fully understood this unique characteristic,

05:10but they have managed to restrict it to as few as 37 possible genes.

05:15Sometimes, after a nap in an uncomfortable position,

05:18you may have felt tingling

05:20or a fattening sensation in your arm or leg.

05:23You might think that this has everything to do

05:25with a bad blood circulation.

05:27But in fact, it could be due to a little thing

05:30called paresthesia.

05:32It's when your body begins to feel unusual sensations

05:36because your nerves are compressed or irritated.

05:39Paresthesia can give you anything,

05:41from a burning sensation

05:43to this annoying sensation that your arm or leg

05:46no longer responds to at all.

05:48It could even add tingling

05:50or these good old characteristic tingling.

05:52Normally, it shouldn't take you more than 30 minutes.

05:56Shake the affected part of the body vigorously,

05:59and it could speed up the process.

06:01If it lasts longer,

06:03or if you have repeated episodes of paresthesia for no apparent reason,

06:07it is preferable to consult a specialist

06:09to make sure that everything is fine.

06:11Do you know what is also worth checking?

06:14If you have already given a blue thumb to this video,

06:17and if you are subscribed to the channel.

06:19You know, just to be sure not to miss anything.

06:23In normal time,

06:25you never think about your stomach

06:27or all the chemistry it contains.

06:29Can you imagine if one day

06:31this substance simply disappeared?

06:33It contains chloride acid,

06:35which is also used in fertilizers,

06:38rubber and steel.

06:40If you ever inhale it,

06:42you will have serious breathing problems

06:44and in your nose.

06:46Every time you chew something,

06:48your stomach begins to produce these gastric sugars.

06:51They are useful because they can decompose proteins,

06:54activate pepsin,

06:56eliminate all the bacteria that you have been able to swallow without even knowing it,

06:59and tell your food to go ...

07:02well ...

07:03to the exit.

07:05Without this acid,

07:06the food would stay right there,

07:08turning into a reproduction ground for bacteria.

07:12Proteins and nutrients would not be absorbed.

07:15Your lunch could quickly go through your digestive system,

07:19and you would end up expelling undigested food.

07:24There is a reason why paper cuttings hurt so much.

07:28To begin with,

07:29they occur on the tip of your fingers,

07:32which are very sensitive areas.

07:34It is because they are full of receptors,

07:36which are like the receptionists of your body,

07:39helping you determine the size,

07:41shape,

07:42texture

07:43and temperature of the things you touch.

07:46When you cut yourself with paper,

07:48these receptors are instantly solicited,

07:51sending unpleasant information to the brain.

07:54Paper cuttings do not look like a sharp cut

07:57made with a sharp knife,

07:59because of the foam on the edges of the sheet.

08:02This exposes your receptors even more.

08:05Paper cuttings do not bleed much

08:07and do not coagulate well either,

08:09which leaves the nerves alive

08:11and aggravates the discomfort even more.

08:14We always use our hands,

08:16so these cuts continue to reopen,

08:18taking an infinite amount of time to heal.

08:21Paper is often treated with chemicals

08:24that can irritate your skin.

08:27The déjà vu seems to strike from nowhere.

08:30You are not a wizard

08:32and you do not communicate with the spirits of the above.

08:35It is simply your brain that works badly.

08:39According to doctors,

08:40déjà vu occurs when two parts of the brain

08:42have a little trouble understanding each other.

08:44These two parts are located on each side of your skull.

08:47Just above your temples.

08:49They are a bit like the memory cards of your brain

08:52and help you remember certain things

08:55like places or the faces of other people.

08:58They even disconnect emotions

09:00and are in charge of language.

09:02Now, in each of these areas of the brain,

09:05which are called temporal lobes,

09:07there is a region called the hippocampus.

09:09It is responsible for short-term memory.

09:13Sometimes, the brain can encounter small malfunctions,

09:17confusing the hippocampus.

09:19This is when we feel déjà vu.

09:22This whole process disturbs your recognition memory,

09:25giving you this strange feeling

09:27that you have already been there before.

09:30Or that you have already met a person

09:32that you see for the very first time.

09:34It is a completely normal process

09:36and you are more likely to experience déjà vu

09:39if you are between 15 and 25 years old.

09:42It also seems that people who travel a lot

09:45or have the ability to remember their dreams

09:48experience it more often.

09:51It is difficult to imagine

09:53that an entire civilization can survive

09:56without anyone being able to see.

09:58This seems highly improbable

10:00and here is why.

10:02First, imagine trying to cultivate crops

10:05without even being able to see what you are doing.

10:08The preparation of the soil would become a nightmare

10:11because, without seeing it,

10:13we would get lost in the first field of wheat

10:15without any reference point.

10:17Harvesting just a little of this food

10:19would not be an easy thing either.

10:21Animals could hide everywhere,

10:23ready to harm us.

10:25Communication would also be complicated

10:28because we would not be able to read something

10:30without touching it.

10:32Even our social lives would be different.

10:35Without eyes, we should be proud of our voices.

10:38Confide in someone without knowing who else is listening?

10:41Thank you.

10:43If you have ever eaten a very spicy pepper,

10:46you know that it is not technically hot.

10:48In terms of temperature.

10:50So why do we feel like it is burning us

10:53even if it just came out of the refrigerator?

10:56Well, spicy foods contain chemical compounds

10:59that deceive our body

11:01so that it alters its internal thermostat.

11:04First, our lips and tongue

11:06feel like they are on fire.

11:08Then our nose starts to run

11:11and we can even shed a tear or two.

11:14Blood vessels dilate

11:16and suddenly our body temperature increases.

11:19To cool things down,

11:21we start to sweat.

11:23Our lungs can also participate

11:25and signal to our diaphragm

11:27to produce hockeys

11:29in order to chase this irritating intruder.

11:32In most cases,

11:34body temperatures are caused

11:36by a substance called capsaicin,

11:38often found in strong peppers

11:40like habanero and cayenne pepper.

11:43Even if we sometimes feel like moving

11:46while we are dreaming,

11:48this is not the case

11:50thanks to a complex system in our body.

11:52It prevents our muscles

11:54from doing all kinds of extravagant things

11:56related to crazy stories

11:58that our brain could invent during the night.

12:00It turns out that most of this brain chemistry

12:02occurs during the paradoxal sleep phase

12:04or REM,

12:06about 90 minutes after you fall asleep.

12:09During this phase,

12:11your brain knows the strangest dreams

12:14while your voluntary muscles

12:16like your arms and legs are deactivated.

12:19This muscle blockage is the reason

12:21why some people wake up

12:23and cannot move

12:25experiencing what is called sleep paralysis.

12:28The great mystery was to know

12:30how the muscles got into this state of paralysis.

12:33At first, researchers thought

12:35that glycine, a neurotransmitter,

12:37was responsible for it.

12:39Research has shown that

12:41even if we block the production of glycine,

12:43the muscles remain frozen.

12:46It took a little more time for scientists

12:48to discover that to maintain

12:50these immobile muscles,

12:52you need both glycine

12:54and another chemical substance

12:56of communication called GABA.

12:59We are not as hairy as our ancestors,

13:01but we still have chicken skin

13:03when we are cold.

13:05It is because of these small muscles

13:07in our hair follicles,

13:09called hair erector muscles,

13:11that pull them up.

13:13For furry animals,

13:15this feature helps them stay warm.

13:17But for us,

13:19it does not accomplish much in terms of heat.

13:21However, we and some other less hairy creatures

13:24have maintained this ability over the years.

13:27Experiments have been carried out

13:29to find out more about this chicken skin.

13:31We found three key factors.

13:33These hair erector muscles,

13:35sympathetic nerves,

13:37and hair follicles.

13:39When we tried to influence the nerves,

13:41hair growth slowed down.

13:43These nerves and our hair follicles

13:45work together,

13:47creating chemical synapses.

13:49Thus, chicken skin is not only

13:51a quick solution to overcome

13:53a low temperature.

13:55It could also help our hair follicles

13:57grow more hair in the long run.

14:01This is why the loss of these muscles

14:03could be linked to baldness.

14:07I bet you have never heard of

14:09undulation, but it is a system

14:11that could well be hidden

14:13in your pantry right now.

14:15Have you ever noticed these grooves

14:17on canned goods?

14:19That's exactly what they are.

14:21And they are not there just for aesthetics.

14:23They make the canned goods

14:25extra resistant.

14:27It is because they can help

14:29to avoid cracking

14:31during the manufacturing process.

14:33In addition, these grooves

14:35are useful during delivery,

14:37acting as an armor

14:39to ensure that there is no loss.

14:41They are also useful in the long run

14:43because they help to keep

14:45canned goods in their original form.

14:47Even when the ambient environment

14:49becomes too hot or too cold,

14:51they expand and contract

14:53without breaking the metal.

14:55You may not notice any cracks

14:57on ordinary canned goods,

14:59but even the smallest opening

15:01can pave the way

15:03for nasty bacteria

15:05to get in touch with the food,

15:07without forgetting that it creates

15:09this little air space.

15:11So when you open the box,

15:13everything slides easily,

15:15without you having to make a lot of effort.

15:17Do you know what does not require

15:19clicking on the subscription button

15:21and liking this video?

15:23Did you know that there is a plant

15:25so eager to reach the sun

15:27that you can hear its growth?

15:29The rhubarb, just before being picked

15:31in the fields, absorbs as many sun rays

15:33as possible to produce glucose.

15:35After this tanning session,

15:37it is transported to dark hangars.

15:39Inside, it continues to grow

15:41and uses the glucose stored

15:43as fuel.

15:45So far, nothing abnormal.

15:47But when it gets cold, dark, warm

15:49and comfortable, the rhubarb

15:51begins to behave strangely.

15:53This environment pushes the plant

15:55to stretch, hoping to find

15:57the sun's rays again.

15:59And it happens so quickly

16:01that you can really hear

16:03the stems growing

16:05and the buds making noise

16:07when they burst.

16:09To ensure that this process

16:11takes place without trouble,

16:13no light is allowed.

16:15The rhubarb will become

16:17a synthesis and bitter.

16:19Speaking of our daily shopping,

16:21you may have noticed

16:23that vegetable bags

16:25had green stripes.

16:27Know that this is a subtle

16:29optical illusion.

16:31These stripes deceive our eyes

16:33by making them believe

16:35that vegetables without skin

16:37are much greener

16:39than they really are.

16:41And there are not only vegetables

16:43but also lemons.

16:45We opt for open yellow bags

16:47in order to obtain the same

16:49burst of color.

16:51If your culinary skills

16:53are not terrible and you are

16:55afraid to spoil the dinner again,

16:57put yourself to the mushrooms.

16:59It is because they are almost

17:01impossible to overcook.

17:03Unlike vegetables, which

17:05turn into broth when they are

17:07overcooked, mushrooms are

17:09much more resistant.

17:11Mushrooms are molecules

17:13that work like armor.

17:15Thus, you can cook them

17:17indefinitely.

17:19They will keep their consistency.

17:21Donuts have no hole

17:23to facilitate their handling.

17:25If you have already tried

17:27to make them at home,

17:29you may have noticed

17:31that when you fry the dough,

17:33the outside cooks quickly

17:35thanks to the boiling oil.

17:37If you want the inside

17:39to become too brown,

17:41thanks to this hole in the middle,

17:43the heat reaches both sides

17:45equally, creating a perfect bain-marie.

17:47Here is how this little piece of paper

17:49is found in your Chinese biscuit.

17:51First of all,

17:53we cook these biscuits flat like crepes.

17:55Then, when they are still

17:57hot and malleable,

17:59we slide these little messages inside.

18:01When the biscuits cool down,

18:03they harden and retain their shape,

18:05trapping the prediction inside

18:07like a delicious time capsule.

18:09According to the legend,

18:11these Asian snacks were

18:13initially intended to help people

18:15send all kinds of secret messages

18:17without arousing suspicion.

18:19Here is a little tip

18:21for every time you buy a meal

18:23in a fast food restaurant.

18:25Avoid the word extra

18:27when you place an order.

18:29The moment you use this term,

18:31you encourage employees

18:33to charge you more.

18:35When you order a special burrito,

18:37according to a British study,

18:39cheese would be

18:41the most frequently stolen food in the world.

18:43It is estimated that

18:45about 4% of all cheese

18:47simply disappears from stores.

18:49And no, it's not the mice

18:51that rob it, it's the people.

18:53Why? Because cheese

18:55becomes more and more expensive,

18:57its price never stops rising,

18:59and cunning thieves try to make

19:01easy money by simply making it

19:03There is not only cheese, however.

19:05Other interesting elements

19:07on the flight list include

19:09fresh meat, chocolate and seafood.

19:11Ferrero, the company

19:13at the origin of these delicious

19:15Nutella jars, needs about

19:1725% of the world's

19:19hazelnut production each year.

19:21So if you think about it,

19:23a hazelnut out of 4 ends up in a chocolate jar.

19:25Manufacturers get these hazelnuts

19:27in Turkey, Italy

19:29and Chile by making sure

19:31that they are delivered from

19:33both hemispheres to maintain

19:35their freshness.

19:37The impact of Nutella on the economy

19:39is even more important than you think.

19:41Because of this high demand,

19:43the price of hazelnuts has climbed sharply.

19:45In 2014, the frost hit

19:47Turkey's hazelnuts,

19:49half of the production was lost

19:51and prices increased as a result.

19:53Now, even places like New Jersey

19:55are trying to cultivate

19:57these hazelnuts worthy of Nutella.

19:59When you imagine someone

20:01trying to make something sweet happen in space,

20:03your first idea would not be

20:05a sandwich.

20:07But in 1965, during a Gemini mission,

20:09astronaut John Young

20:11brought a corned beef sandwich

20:13on board, breaking NASA's rules.

20:15He hid it in the pocket

20:17of his space suit before takeoff.

20:19About 2 hours after the start

20:21of the 5-hour journey, he turned

20:23to his commander and offered him

20:25this delicious illegal treat.

20:27The commander, a good player,

20:29accepted it, and they

20:31quickly shared this delicious treat.

20:33He even put the rest of the sandwich

20:35in the pocket of his space suit

20:37to prevent crumbs from dirtying the ship.

20:39In the meantime,

20:41the food officially approved

20:43by NASA was waiting patiently

20:45in a nearby box.

20:47Radishes are probably not your first

20:49ingredient choice in a salad,

20:51but they also have a

20:53quite interesting story.

20:55These cousins of mustard, broccoli,

20:57cabbage and cauliflower

20:59have been grown and consumed

21:01for longer than you think.

21:03Even before the Romans

21:05came into play,

21:07at the time of Ancient Egypt.

21:09In fact, radishes

21:11were to be used as currency

21:13to pay the workers who built

21:15the pyramids, alongside onions

21:17and garlic.

21:19One might think that the English are the champions

21:21when it comes to drinking tea, but that would be a mistake.

21:23Turkey is in fact

21:25the world leader in tea consumption.

21:27Each Turk drinks on average

21:291,300 cups of tea every year.

21:31On an ordinary day,

21:33they syrup between 3 and 5 cups,

21:35but when winter hits,

21:37they can reach up to 10 cups per day.

21:39The locals claim

21:41that tea is a custom for them.

21:43It's more than just a hot drink.

21:45It's an excuse to sit down,

21:47enjoy the atmosphere

21:49and connect with your loved ones.

21:51As for the different varieties,

21:53it is black tea that is preferred.

21:55A magical drink

21:57may be hidden in your refrigerator.

21:59It is tonic water

22:01and it could be able to shine

22:03in the dark.

22:05If you are curious,

22:07test it with a little ultraviolet light.

22:09The secret of this glow is quite simple.

22:11Tonic water contains quinine,

22:13a chemical compound

22:15that lights up under certain conditions.

22:17Quinine was once used

22:19to treat certain health problems.

22:21This product was so bitter

22:23that some people

22:25began to mix it with sugar

22:27and sparkling water.

22:29In simple terms,

22:31things shine because they absorb

22:33the luminous energy,

22:35excite, then release it

22:37in the form of visible light.

22:39Quinine in tonic water

22:41absorbs and releases energy,

22:43making your drink look like

22:45a fairy tale potion.

22:47The difference between what we hear

22:49and what we taste.

22:51Scientists have investigated

22:53and discovered that people

22:55from all over the world

22:57associate certain sounds

22:59with specific flavors

23:01and they call it

23:03intermodal correspondence.

23:05High-pitched sounds correspond

23:07to sweet and sour tastes,

23:09while low and discordant sounds

23:11go hand in hand with bitterness.

23:13If it's a staccato,

23:15some have even found music

23:17capable of enhancing the taste of chocolate.

23:19In this study,

23:21when people listened to this band

23:23with sweet, high-pitched tones

23:25while eating chocolate,

23:27they found it sweeter

23:29than when they heard

23:31a lower and more dissonant sound.

23:33If it smells like fish at home

23:35and you haven't eaten salmon

23:37for a while,

23:39it may be time to check

23:41your electrical installations.

23:43Do you know

23:45that your switch is defective

23:47or that your circuits are overheating?

23:49Didn't you know that these

23:51electrical cables emitted

23:53a much more unpleasant smell

23:55than a sandwich in the shade

23:57forgotten in the sun?

23:59So call your electrician

24:01and have everything checked as soon as possible.

24:03But if it's a smell of rotten eggs

24:05floating in the air at home,

24:07call a plumber right away.

24:09Your pipes are probably contaminated,

24:11and there is a gas leak.

24:13Manufacturers add water to natural gas,

24:15a chemical product with an unpleasant smell,

24:17so that people can immediately notice

24:19the slightest leak.

24:21The next smell is not as easy to notice

24:23as a unicorn in Central Park,

24:25so listen carefully.

24:27Have you ever smelled a strange smell

24:29just before turning on your kitchen?

24:31It is carbon monoxide,

24:33and it is very important to know it.

24:35Because this sickening gas can be extremely dangerous

24:37if you inhale too much of it.

24:39The worst thing is that it is totally odorless.

24:41So what is this strange smell?

24:43It's actually what you add to the gas

24:45to warn you that a danger is lurking.

24:47So, the next time your cook smells bad,

24:49tell yourself that it may not be

24:51because of the lasagna from the day before.

24:53It is not uncommon to find mold

24:55in places where there is stagnant water.

24:57For example, when a leak

24:59is hidden behind the walls.

25:01Mold spores can develop

25:03in these humid areas

25:05and can cause serious health problems.

25:07Leather shoes have a weakness for shoes.

25:09They love to hide in them,

25:11but only in certain conditions.

25:13If you own a pair of shoes

25:15that you almost never wear,

25:17be careful.

25:19Leather shoes could well be

25:21comfortably installed.

25:23But don't worry,

25:25there is a trick to keep

25:27these animals out of your shoes.

25:29Leather shoes are a little too smooth

25:31for leather shoes to slip.

25:33It is therefore unlikely

25:35that you will find

25:37any insufferable insects.

25:39All these interesting textures

25:41and patterns are perfect

25:43to hide.

25:45So, if you want to prevent

25:47scumbags from entering,

25:49wear them regularly.

25:51They don't like to be stirred.

25:53And who knows,

25:55you could even crush

25:57a few of them on the way.

25:59It's worth a try.

26:01So go ahead, put on your sneakers

26:03and maybe it's time to check your mattress.

26:05Recent scientific studies

26:07have revealed that a 7-year-old

26:09mattress can house more bacteria

26:11than a science fiction movie taking place in space.

26:13More than 16 million units

26:15form a colony for 6 square centimeters.

26:17Enough to make the bravest of us

26:19want to sleep in a special suit.

26:21But don't worry,

26:23there is a solution to this problem.

26:25It is sodium bicarbonate,

26:27the unknown hero of household maintenance.

26:29Sprinkle a little

26:31of this magical powder on your mattress,

26:33let it rest for half an hour

26:35and spend time with something fun.

26:37Cat videos are playing every time

26:39and then vacuum on it.

26:41And there you go, your bed will feel

26:43fresher than a field of daisies in the spring.

26:45Don't let these damn bacteria

26:47take over.

26:49And who knows, maybe your refreshed mattress

26:51will encourage you to have beautiful dreams

26:53or at least keep nightmares away.

26:55Have you ever noticed that your towel

26:57sometimes smells like the monster of the swamp?

26:59Yes, it's because you've been using it

27:01for too long.

27:03To avoid bacteria, change your towel

27:05after three uses.

27:07And if you really want to ban these bad germs,

27:09use sodium bicarbonate from time to time.

27:11Your nose and, if you don't live alone,

27:13your roommates will recognize you.

27:15If your bathroom smells like swamp,

27:17it may be because of a little stagnant water

27:19or a residue in your pipes.

27:21Don't worry,

27:23if the plumber can't come today,

27:25you can remedy this problem

27:27with a few drops of your favorite essential oil

27:29on your toilet paper roll.

27:31It's not a long-term solution,

27:33but at least you'll breathe a little better.

27:35Now let's move on to this

27:37ugly toilet brush.

27:39Pour a little scented detergent into your little bucket

27:41or make your own perfume

27:43with distilled water and essential oil.

27:45This will eliminate bacteria

27:47and essential oil will hide

27:49bad smells.

27:51Just make sure you don't have an allergy

27:53to the oil of your choice.

27:55Do you know that mold can form

27:57in your washing machine?

27:59Disgusting, isn't it?

28:01Launch a dry heat cycle,

28:03without a dish, but with white vinegar.

28:05Make sure to rinse the inside well,

28:07including filters and panels.

28:09And if your basket looks a little moldy,

28:11soak it in a little diluted antibacterial detergent

28:13before rinsing it carefully.

28:15Now let's talk about the weird noises

28:17in your house.

28:19The clicks and bangs in winter or autumn

28:21can come from the start of your heating.

28:23If condensed steam is stuck in the pipes,

28:25try to purge your radiators.

28:27If you hear a boil,

28:29it may be a leak of water or sediment

28:31in your boiler.

28:33Cut the main water and listen.

28:35If the noise stops, call the plumber.

28:37If this is not the case,

28:39try to empty the tank.

28:41When you move into a new house,

28:43check the walls and ceilings.

28:45Fresh paint could hide something.

28:47So ask your owner

28:49to estimate it.

28:51And avoid grainy ceilings.

28:53Not only are they ugly,

28:55but they contain laminate.

28:57Laminate is like a bowl

28:59of alphabet pads.

29:01It is made up of all those

29:03difficult-to-pronounce crystalline fibers.

29:05But beware of these wacky names.

29:07Laminate is a hard leather.

29:09It can withstand high temperatures,

29:11chemical products, and even electricity.

29:13No wonder so much

29:15was used in construction in the past.

29:17Laminate is a rusty ninja.

29:19It can break down into tiny fibers

29:21that will float in the air

29:23for days and days.

29:25And by accidentally breathing these fibers,

29:27you let something dangerous

29:29enter your lungs.

29:31So be careful. Avoid laminate

29:33and protect your lungs.

29:35Be careful if you are renovating an old house.

29:37This toxic material could be in its roof.

29:39Bacteria responsible for odors

29:41love to party in the sink

29:43and in the drain of your kitchen.

29:45And let's not even talk about the garbage grinder.

29:47A real disco for bacteria.

29:49But there is a fun solution.

29:51Once a week,

29:53organize your own party

29:55by inviting six ice cubes,

29:57a tablespoon of baking soda,

29:59three thin slices of lemon,

30:01and a teaspoon of Javel coffee water

30:03in your grinder.

30:05Turn on the grinder

30:07and let the ice cubes act.

30:09Once the party is over,

30:11rinse everything in cold water for 30 seconds.

30:13And voila! A clean and fresh sink.

30:15Your new sofa and your new cupboards

30:17could secretly release

30:19gaseous gases in the air.

30:21Yes, it's true.

30:2316 gases, called volatile organic compounds

30:25or COV, can irritate your nose

30:27and your throat.

30:29And as if that weren't enough,

30:31they can even give you headaches and dizziness.

30:33But don't worry,

30:35I'm here for you.

30:37If you can, open your windows

30:39to let the fresh air circulate.

30:41And if you are looking for new furniture

30:43check out the COV options.

30:45Your nose will thank you.

30:47And then,

30:49who would like to live among smelly furniture?

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