hair loss

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You're Noticing: Your Part Seems to be Getting Wider

Likely Cause: Female-pattern hair loss due to aging, changing hormone levels (hello, menopause!) or a family history of thinning
Why it leads to thinning: It's not clear why but this type of thinning generally affects the part first and expands from there. Hair follicles start to shrink, producing shorter and finer hairs than they used to before they stop producing hairs at all. It generally doesn't lead to serious balding though.
How to fix it: Minoxidil is your best option. As of 2014, 5-percent-Minoxidil products are available for women in addition to the standard 2 percent (the former used to be approved for use in men only). Your doctor may also recommend laser treatments aimed at stimulating hair growth.