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Your body usually does a pretty good job of telling you when things are really wrong, but there are also subtle ways your body can alert you of an issue, or perhaps the beginning of one. For instance, did you know that persistent cracked lips could mean you're lacking B vitamins, which could lead to bigger health problems?

There are plenty of other tell-tale signs like this that hopefully you'll be able to catch going forward, because you might have ignored them before.

Do you have any of these already?