Trivia* John D. Rockefeller had an extreme case of alopecia that caused him to lose all of the hair on his face, including his eyebrows and eyelashes. Another famous person who suffers from similarly severe alopecia is Italian football referee Pierluigi Collina. Actor Patrick Stewart lost most of his hair to alopecia by age 19.
* Eunuchs do not go bald, due to reduced hormone levels.
* Baldness is not only a human trait. Some other primates, such as Chimpanzees, stump-tailed macaques, and South American nakari show progressive thinning of the hair on the scalp after adolescence.
* The different predecessors of Old World and New World vultures convergently evolved a bald head, preventing feathers from retaining material from the vulture's diet of rotting meat, as well as helping in heat regulation.
* The American Bald Eagle is not really bald. The feathers on the head of this bird are white, in contrast to the brown feathers of the body.
Table of Contents:
Preventing and reversing hair loss
Concealing hair loss
Common baldness myths