Prisoners and slaves have been forced to have their hair shaved off to make them feel weak and humiliated.
Hair grows faster in summer and at night.
Hair grows faster from age sixteen to twentyfour.
It is made of mostly keratin, the same material that makes animals hooves, claws, horns and beaks.
Hair contains a lot of information about what has been in the blood stream and is very useful forensic evidence.
In Ancient Rome, women used to dye their hair blonde with pigeon dung.
Hair traps air just outside the skin, helping to keep cool in summer and warm in winter. It absorbs ultra-violet rays , reducing skin cancer. This reduction does not mean it is safe to avoid warnings about midday sun and the risk of skin cancer. The more hair there is the better the effect.
Many drugs cause hair loss
Thyroid problems can cause hair loss
Chemotherapy sadly causes hair loss in a great many people
Some people choose to go bald, Buddhist monks in order to sever all attachments.
Famous confident women such as Sinead to make a statement..