Maybe you chew your fingernails when you’re nervous. Or scarf down chocolate when you’re sad. Or take home a stray kitty whenever you see one, until the SPCA has to come rescue them all and have you arrested for being a hoarder.
Chances are, you have a few habits you wish you didn’t have, and quite possibly you’ve tried (and tried and tried) to break them. Scientists are learning why you may have failed (and failed and failed). In fact, they now know that once you have a habit, you can never really unlearn it. more