Ten peculiar and wow facts about the human body

Ten peculiar and wow facts about the human body

  1. Despite some of us take good care of hair, every hair on our body is biologically dead. The only alive part of it is under its follicle. So everything we do for our hair to support their vitality only affects the follicle part. Any other treatment of hair outside the skin is only mechanical + chemical treatment, not biological.
  2. By the way, blond people have the most quantity of hairs on their head, red-headed have the least.
  3. Thanks to being positioned closer to the heart, our fingernails grow faster than toenails because they receive more nutrients and oxygen.
  4. The strongest and best-controlled muscle in our body is the tongue (although some people should better control what they say).Язик може вказати на проблеми зі здоров'ям: основні симптоми – Свідок
  5. An eye pupil is the part in our body that dilates and constricts the most: up to 4 times in diameter, from 2 to 8 mm! For men’s disappointment, who thought it is a penis that enlarges the most in their bodies, it is not: flaccid penis on average is 9-10 cm, and erect one is on average from 13 to 15 cm in length (according to Wikipedia), thus, an enlargement during erection is only from 30% to 66%, way too incomparable with 400% of the pupil (and about 1,600% if to consider calculated pupil’s area, not diameter).
  6. An average human body consists of bacteria at 50-55% in weight. There are about 30 trillion cells we have belonging to our own body, whilst at the same time, we host about 39 trillion bacteria. Thus, more than half, every human is actually a waking fascicle of bacteria, believe it or not! And given that about 70% of the body is water, it turns out that an adult 70-kg human only has 11 kg of ‘self’, if to exclude all water and bacteria from our tissues!
  7. As human ages, there become fewer bones and joints in their body – some grow with one another during aging, as their high movability is no longer needed during adulthood. Thus, from 300 bones we’re landing onto 206 only. That’s why we’re so far from child flexibility after our thirties.
  8. Déjà vu is a real thing – using this mechanism of our memory, the brain checks and compares various similar life situations to avoid being misguided by similar feelings and reactions received from sense organs. This is NOT because we all live in Matrix and it glitches at times (although, the Matrix concept is neither discharged nor proven by now).С помощью среды виртуальной реальности ученые изучили феномен дежавю –  Qled.com.ua
  9. Dopamine that’s produced by our brain when we fall in love is released into the cardiovascular, respiratory, and digestive systems, causing them to tense and work more, triggering flushing, heightened arterial pressure, and tension of abdominal muscles. The latter is interpreted by us as ‘butterflies in the stomach’ in togetherness with other mentioned sensations.
  10. There are more than 4 tastes that the human tongue can define (sweet, salty, bitter, and sour). The fifths taste is named ‘Umami’ and is simply defined as ‘tasty’. Other definitions are ‘savory’ and ‘meaty’. Umami usually comes from high-protein foods.

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