Having gray hair is a common to everyone these days. Stress and psychological worries may also trigger the early graying of hair. It may occur to some people who have medical conditions, but this should not worry you if you do not have any illness. Women can also suffer hair loss or thinning hair as they get older, or during pregnancy. Anemia may also be a contributing factor, but whatever the cause, the results can be distressing and lead to a loss of self confidence.