In Focus:

Here's How Often You Should Wash Your Bath Towel

I hate to break it to you, but your bath towel is dirty – really dirty. The moment you use it, it becomes a breeding ground of bacteria; fungi; dead skin cells; salivary, anal and urinary secretions; and many other germs lingering in your bathroom that may have hopped onto your towel – including droplets from your toilet.

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Caffeine: How much is too much?

If you rely on caffeine to wake you up and keep you going, you aren't alone. Caffeine is used daily by millions of people to increase wakefulness, alleviate fatigue, and improve concentration and focus. How much is too much?   Up to 400 milligrams (mg) of caffeine a day appears to be safe...

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Is home sperm test useful or not?

Home sperm tests measure sperm count — the number of sperm in the fluid (semen) ejaculated during an orgasm. These tests seem to be effective at measuring sperm count — one study sponsored by a test manufacturer found the test did as well as a lab count of sperm 95...

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The Abs-Tightening Workout You're Not DoingBut Should Be

The abs are your body’s built-in way of stabilizing itself. When you remove balance points, your abs will always engage. Try it! Go from standing on two feet to standing on only one. Notice how your abs turn “on.” How about going from kneeling on “all 4s” to extending one...

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