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Long, strong, and healthy nails can instantly make your hands look elegant and polished, even without a manicure. But if your nails constantly break, peel, or refuse to grow past a certain length, you ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Dealing with stubby nails that grow at a sloth’s pace can be frustrating when you’re dreaming of Cynthia ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...