Worrying about hair loss isn't just for guys. Although it's mostly dudes who have nightmares of alopecia, women often experience thinning hair as they age. HairDX ($149, on sale) is a genetic test that predicts whether that's likely to happen to you. The idea is that if you'll probably lose your hair, the test will propel you to get on a prescription to stop that from happening. Think you'd want to know about this, or are you happier to not worry about it?
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