How does hair conditioner work?
Light reflects off this cuticle layer, giving hair its natural shine. The average person has between 120,000-150,000 hair strands and they look their best when the overlying ... it’s the cationic surfactants that do most of the work.
9 Good Things To Do With Human Hair
Hair. On a head, it can dazzle ... us to gain tiny details of how someone lived their life thousands of years ago at a very intimate level," says Joann Fletcher, a British archaeologist who has analyzed ancient mummy hair for evidence of disease, poisons ...
You probably don't know how many holes are in your body right now
How many do we have ... humans average five times as many sweat gland openings as apes. The fact that hair follicles and sweat glands originate from the same epidermal stem cells, but undergo different processes of differentiation, suggests that their ...
Why do women have less body hair than men?
Further, it seems questionable that ancestral females, many of whom were continually ... This is not to say Dean and Siva-Jothy have not located an important function of human body hair. But it does suggest their account is not the whole story.
Strands of Evidence: Hair Forensics
Scientists in the US and Europe have used this basic idea — and some sophisticated isotopic analysis — to devise a sort of hair-based GPS tracking system. A single strand ... where do animals eat and drink, and does the location of their watering ...