Other than in dire cases, diet pills carry more risk than benefits. Dieting and exercise are still the best ways to control our weight.

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What is slimy, has three jaws, about 300 teeth, and likes to suck on your scrumptious human blood? Fact: An adult leech can consume 10 times its own body weight before falling off to slowly digest its meal.

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CSI re-runs would have you believe that DNA identification is the be-all and end-all of crime scene investigation - but this isn't quite the case.

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Leg cramps... they can happen anywhere, anytime and often when you least expect it.To understand what's going on, we need to know a little bit about how muscles work.

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DNA Day experts answer your questions about genetics and behaviour. Learn More about DNA Day.

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