Interesting and lesser-known facts about human hair
There are many interesting and lesser-known facts about human hair. Here are a few:
Hair is incredibly strong
A single strand of hair can support up to 100 grams in weight. This means that the an average head of hair can support the weight of two elephants!
Hair grows faster in warm weather
Hair growth is influenced by temperature and other environmental factors. On average human hair grows about 0.5 inches per month, but this rate can be increase in warm weather.
Hair is made up of same substance as fingernails
Both hair & fingernails are made up of a protein called keratin. It gives them strength & durability.
Hair can grow back after being pulled out
While it is painful, pulling out a hair by the root does not necessarily mean that it won’t grow back. In most cases, the hair follicle is not damaged & the hair will regrow.
Hair can reveal information about your health
Hair can be used to test for a variety of human health conditions, including drug use, hormonal imbalances & nutritional deficiencies.
Blonde hair is not necessarily finer than other hair colors
Despite popular belief, blonde hair is not inherently finer or thinner than other hair colors. Hair texture and thickness are determined by genetics and other factors.
Hair can contain traces of environmental pollutants
Just like other parts of our body, hair can absorb & retain environmental pollutants. This is why hair can be used as a biomarker for exposure to toxins.
Hair is not alive
While hair follicles are alive & actively growing hair, the hair shaft itself is made up of dead cells. This is why hair doesn’t hurt when it is cut
Hair has a natural curl
The shape of a hair follicle determines whether hair grows straight or curly. A round follicle produces straight hair, while an oval-shaped follicle produces curly hair
Hair contains information about your ancestry
Hair can contain genetic information that can reveal ancestry. For example, certain genetic markers are more common in people of African, Asian or European descent.
Hair can change color with age
As we age, our hair can turn gray or white due to a loss of pigment. This process is largely determined by genetics, but stress & other environmental factors can also play a role.
Hair can be used to make wigs and other products
Human hair is a valuable commodity and is often used to make wigs, hair extensions & other hair products. In some cases, the hair used in these products is obtained from hair donors who sell their hair for profit.
Overall, human hair is very fascinating & versatile part of our biology that having many unique & interesting characteristics.This complex topic that has many interesting facts & facets to explore
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