Men are more likely than women to lose their hair because changes in testosterone levels are a major cause of hair loss. Women have less testosterone, so they tend to keep their hair, although it may thin a bit during menopause.Continue Reading
Natural hair loss, called androgen alopecia, occurs when an enzyme converts testosterone into dihydrotestosterone. Dihydrotestosterone causes hair to become thin and brittle, leading to permanent hair loss. Higher amounts of this hormone build up as men age, leading to progressive baldness. Some men appear to be genetically predisposed to hormonal changes earlier in life or more quickly. Researchers theorize that Asian men may have less dihdrotestosterone than Caucasian ones, because the former tend not to exhibit the same likelihood of baldness.
Women may notice hair thinning during menopause because their bodies begin to produce less estrogen, which increases the influence of testosterone on their hair. However, the lesser levels of testosterone lead to a more even thinning in most women rather than the typical male pattern baldness.
Some animals display similar patterns of baldness. Male chimpanzees sometimes lose the hair on their heads as they age. Stump-tailed macaques, a species of monkey found in southeast Asia, are unusual because both sexes lose the hair on their faces and heads.Learn more about Human Anatomy
Treatment to lower testosterone levels in women includes lifestyle changes such as weight control or loss; a change in diet; and a change in medications such as birth control pills and dietary supplements, according to the University of Maryland Medical Center. In extreme cases, physicians may consider testosterone replacement depending on the condition.Full Answer >
The most-common cause of problems with urine flow in older men is an enlarged prostate gland. Another cause in all age groups and both sexes is infection in the urinary tract, according to the National Institutes of Health. Urinary hesitancy can also be a side effect of some medicines and medical procedures.Full Answer >
A study conducted by Federal University in Rio de Janeiro found that women have more brain cells located in the olfactory bulb, which is responsible for a person's sense of smell, which means women could have a stronger sense of smell than men. Studies throughout the years have tried to prove why women have a keener sense of smell than men, with results being mixed or not concrete enough for a scientific explanation.Full Answer >
Unlike men, women have breasts and tend to have smaller Adam's apples then men, which is why their voices tend to be higher. Most scientists believe that women evolved to have breasts as a way to attract men, as ample breasts are associated with the ability to feed children. Men tend to have more angular, pronounced brows, cheekbones and jaw lines.Full Answer >