Salut tout le monde, avez-vous déjà remarqué ces petites crêtes verticales sur vos ongles et vous êtes-vous demandé ce qu'elles signifient? Eh bien, nous avons découvert des vérités choquantes à leur sujet, et croyez-moi, ce n'est pas ce que vous pourriez penser! Mais ce n'est pas tout—cette vidéo explore d'autres faits surprenants sur le corps qui vous épateront. Des choses amusantes que votre corps fait aux signaux de santé cachés, vous découvrirez ce que votre corps essaie vraiment de vous dire. Curieux? Rejoignez-nous et découvrez les secrets étonnants qui se cachent à la vue de tous! Animation créée par Sympa.
----------------------------------------------------------------------------------------
Musique par Epidemic Sound https://www.epidemicsound.com
Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna
----------------------------------------------------------------------------------------
Nos réseaux sociaux :
Facebook: https://www.facebook.com/sympasympacom/
Instagram: https://www.instagram.com/sympa.officiel/
Stock de fichiers (photos, vidéos et autres):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
----------------------------------------------------------------------------------------
Si tu en veux encore plus, fais un tour ici:
http://sympa-sympa.com
----------------------------------------------------------------------------------------
Musique par Epidemic Sound https://www.epidemicsound.com
Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna
----------------------------------------------------------------------------------------
Nos réseaux sociaux :
Facebook: https://www.facebook.com/sympasympacom/
Instagram: https://www.instagram.com/sympa.officiel/
Stock de fichiers (photos, vidéos et autres):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
----------------------------------------------------------------------------------------
Si tu en veux encore plus, fais un tour ici:
http://sympa-sympa.com
Category
😹
FunTranscript
00:00Observe your nails closely. Are they slightly striated?
00:04Several factors can be the cause, regardless of your skills in manicure.
00:09First of all, know that the condition of your nails can reflect health problems.
00:13However, vertical striations are generally normal, especially with age.
00:18It is a natural manifestation of skin aging, indicating a slowdown in cellular renewal.
00:24New cutaneous cells form less quickly, hence the appearance of this texture.
00:29However, if this is accompanied by other unusual symptoms,
00:33it could reveal a more complex problem, like a chemical imbalance.
00:38This can not only cause vertical striations, but also give a spoon shape to your nails.
00:44Avoid putting things in your ears, you have always been told,
00:48including cotton swabs, because even if you use them gently, you could cause damage.
00:55An interesting fact is that the insertion of objects in the ear can trigger a reflex of everything unusual,
01:01called Arnold's earwax reflex.
01:04This phenomenon is linked to vagus nerves, a long nerve that extends from the brain to the abdomen,
01:09passing through the ear and the larynx, with a detour on the side of the stomach.
01:14This nerve supervises various autonomous functions of everyday life,
01:18such as speech, digestion and other involuntary actions.
01:23The branch that connects the vagus nerve to the ear, known as the vagus nerve's auricular branch,
01:29is responsible for tactile sensations in this area.
01:32Stimulating this branch can trigger a cough, because the brain perceives a false presence signal in the throat,
01:38thus inciting the body to react with the cough to expel the imaginary intruder.
01:43You may also be deprived of a certain muscle in your arm, but this is not worrying.
01:50It is a relatively common congenital condition.
01:53This tissue, called the long-palmar muscle tendon, is absent in about 14% of the population.
02:01To check its presence, slightly bend your wrist and bring your ear closer to your thumb.
02:07If a tendon protrudes inside your wrist, it means that you have it.
02:11Otherwise, this is not a problem, because this muscle generally does not bring any significant advantage to the functionality of your arm.
02:19Here is a little experiment that you can try at home, without risk, to find out what your dominant nostril is.
02:26Even if you probably didn't know you had one,
02:29stand in front of a mirror, breathe through your nose and observe the formation of the bubble.
02:34Of course, two marks will appear, but in most people, one will be more pronounced.
02:40Indeed, we generally breathe more through one nostril at a time.
02:44According to some specialists, about 75% of our breathing comes from a single nostril at some point.
02:51This phenomenon alternates during the day, a process called the nasal cycle.
02:57Why not both nostrils at the same time?
03:00It seems that it is mainly to maintain adequate hydration, thus preventing a side from drying out too much.
03:09You may notice this difference when you try to fall asleep.
03:13By lying down on the right side, gravity pushes part of your nose to work more.
03:19Speaking of sleep, every time you try to rest in a new place,
03:24only part of your brain manages to fully enjoy a restorative sleep.
03:29This is explained by the fact that our brains tend to remain partially in a state of vigilance in an unfamiliar place.
03:36This observation explains why we often wake up in the middle of the night in a new apartment.
03:43It is a mechanism that we share with some birds and marine animals,
03:47able to sleep partially while remaining attentive to danger.
03:51Sleep researchers have found this phenomenon that they called the effect of the first night.
03:57In sleep studies, participants showed such mediocre results after the first night
04:04that it was often necessary to exclude these data.
04:06However, from the second night, the quality of sleep improved.
04:11Historically, this vigilance was probably an adaptive response to night threats,
04:17such as predator attacks, hence the need to keep part of the brain on alert.
04:22Unfortunately, there is no way to neutralize this reflex,
04:26which explains that after a night in a new place, you will probably need more coffee.
04:32And don't forget to subscribe to stay informed of our new videos,
04:36a little boost for these difficult days.
04:39It is also possible that every time you prepare to exercise,
04:44your heart activates before you even start moving.
04:49This phenomenon, called anticipated rise,
04:52corresponds to a reaction where the brain sends signals to the heart to encourage it to prepare for the effort.
04:58These signals are manifested by the release of chemical substances such as adrenaline and noradrenaline.
05:05This increases the heart rate, which increases blood flow and improves the oxygen supply to the muscles,
05:12thus preparing them for the physical effort.
05:15The performance of your heart directly influences the effectiveness of this process.
05:19The healthier it is, the smoother this transition is made.
05:24We have all heard stories of ordinary people
05:27able to lift very heavy objects in a situation of intense stress,
05:31like a mother lifting a car to save her child.
05:35This phenomenon, sometimes called hysterical force,
05:39cannot be reproduced in a laboratory,
05:41because it is impossible to simulate a real situation of imminent danger.
05:46These spontaneous and unexpected moments seem to reveal a kind of hidden force.
05:52However, even if we imagine that these people lift huge weights,
05:57their strength is not as impressive as it seems.
06:01Let's take the classic example of car lifting.
06:05One might think that they lift the whole car.
06:08But in reality, they only lift a part of it,
06:11the wheels remaining mostly in contact with the ground.
06:15In addition, the distribution of the weight of a car is not uniform.
06:19The engine is the heaviest part, contrary to the area generally lifted.
06:24As for the hysterical force,
06:26it is mainly about realizing that we are often stronger than we think.
06:30Usually, our muscles function in economy mode,
06:34using just what is needed to accomplish daily tasks.
06:38But in extreme situations,
06:40our body can mobilize a greater muscular power.
06:43Our organs are designed to be effective.
06:47Why require all our muscles to simply lift a cup of coffee?
06:52Even when we feel exhausted,
06:54it is likely that this is not entirely the case.
06:57Researchers estimate that even high-level athletes
07:00only use 60 to 80% of their muscular capacity.
07:04In addition to this efficiency,
07:06our brain also limits the complete activation of our muscles
07:10by an internal security mechanism.
07:12If we used all our strength,
07:14we would easily injure ourselves.
07:17The simple game of coucou is not only a fun for babies.
07:21They appreciate it enormously because it promotes their development.
07:25This game goes beyond the simple fact of covering
07:28and discovering faces.
07:30It helps babies to improve their ability to visually follow.
07:34It is also useful to understand the concept of permanence of the object.
07:39The fact that an object continues to exist even if it is out of sight.
07:44This awareness contributes to develop their skills
07:48in problem-solving as they grow up.
07:52In addition, playing coucou is an excellent way
07:56to arouse various positive emotions in babies,
07:59from surprise to anticipation,
08:01then to excitement and happiness.
08:05Some say they can manage with only 4 hours of sleep per night.
08:09However, scientists argue that most adults
08:13need 6 to 8 hours of quality sleep.
08:16In fact, sleeping less than this average
08:19can lead to a serious sleep deprivation,
08:22except if you are one of the rare super-sleepers.
08:25These unique individuals thrive with less than 6 hours of sleep each night
08:30and wake up naturally after only 4 or 5 hours.
08:34Only 1 to 3% of the population has this ability.
08:38It is important to note that this ability is genetic
08:42and cannot be acquired by training.