Science

Important Facts About The Human Hair

According to the scientists, human hair has gone through intensive amounts of stereotyping, research and vanity. Hair is one of the unique expressive parts of our body- whether your hair is black, brown or red it applies to everybody. You may know how to style your hair, which side to comb your hair and how different hairstyle gives you different looks. But there’s a lot of weird stuff going on up there that we rarely give a second thought.

Important Facts About The Human Hair

Here are some pretty amazing and cool facts about your hair.

  • Human hair grows slightly more during the summer seasons  because heat stimulates circulation and encourages hair growth.
  • Except for the hair inside the epidermis of the scalp, all hairs are dead.
  • Ancient Roman hair Dye was Made from Bird Poop
  • Hair contains all the information about everything that has ever been in our bloodstreams. This is the reason hair is an important evidence in forensic research.
  • When a hair is plucked from its follicle, a new hair begins to grow.
  • Human hair has 50% carbon, 17 % nitrogen, 5 % sulphur, 6 % hydrogen and 21% oxygen.
  • Except mucous membrane, soles of feet, palms of hands, lips and eyelids hair can grow anywhere in the human body.
  • Do you know that the scientific name of split ends is “trichoptilosis”.
  • Hair is one of the fastest growing tissues in the human body.
  • When our scalp loses 50% of the hair, then only baldness begins to visible.
  • The lifespan of a single human hair is almost 5 years.
  • Do you know that a single strand of hair can support up to 100 grams in weight.
  • Gender of a human can not be determined by using hair.
  • The elasticity of an Asian hair is greater than any other races in the world.
  • Hair of an Asian people grows faster than any other races in the world.
  • It is a myth that, trimming of hair promotes hair growth.
  • The rarest hair color in this world is black and the common is red.
  • Don’t worry if you are losing hairs everyday because every person in this world loses 50 – 100 strands everyday but sometimes it varies from people to people.
  • At any time 10% of our scalp hair is resting and 90 % of the hair is growing.
  • Human hair is mostly made up of keratin, the same proteins animals horns and birds feathers are made of.

Subscribe to Byju’s for better understanding and learning of each chapters and subjects :