Myth: Only older women experience hereditary hair loss.

Unfortunately, this isn’t true, either. Hereditary hair loss can strike at any time in a woman’s life. Though it is more likely to occur as you get older, some women start to notice hair thinning during their 20s, while others make it past 50 without significant loss or thinning. At the end of the day, it depends on your genes, hormones and other factors, including diet and lifestyle.