The hair tag has no wiki summary.
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How does hair grow and is it similar to how grass grows?
If I recall correctly, nails (finger nails or toe nails) grow by adding matter at its base. So for instance, if you would draw a dot at the very bottom of your nail, it would end at the top in a ...
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Iron deficiency anemia symptoms explanation
In my classes and on the internet, brittle nails and dry hair (or hair loss) are described as symptoms of iron deficiency anemia, but none explains the cause of such symptoms.
Does anyone have any ...
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Chiral (a)symmetry of curly hair (and fur)
Some people have curly hair, as well as fur of some animals can be curly.
However, shapes which are curly are not mirror symmetric, much alike screws or chiral molecules.
The question is whether ...
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What's the Evolutionary Purpose of Hair in Humans (namely the hair that grows on their skin, NOT internal hairs)? [closed]
My guess would be the following four:
Protection from the cold (especially head hair)
UV light protection (especially head hair but hair elsewhere would also protect from UV light in times when ...
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What could cause hairs to gray at the tips but not the roots?
I have noticed that some of my sporadic gray hairs are gray at the tip side but oddly, not near the roots. Some are even only gray in the middle. I find all of this very counter intuitive, and I ...
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What causes random long white body hairs?
I'm sure many of you have experienced this - you scratch your back or brush your hand over your arm and find a ridiculously long thin white hair, sometimes as long as 3 or 4 inches. I know a few ...
