FitBuff Morning Mix: Male Birth Control, Sore Knees, Pilot Protein

• New Male Contraceptives Successful In Mice And Men Scientists are trying to give men as many birth control options as women, but they're not quite there yet. In this study, men had to have a shot every few months, and rub a testosterone gel on themselves. One upside: While the method all but eradicated sperm production, it was much easier to reverse than a vasectomy. (Condoms don't seem so bad now, do they?)
• Heart-Healthy Exercise May Also Be Knee-Healthy Exercise After much debate on whether exercise helps or causes osteoarthritis, Australian researchers used MRI to determine that moderate exercise does indeed help prevent knee problems.
• Air Force tests protein for pilots, commandos If you visit your gym on a regular basis, you have probably seen guys chugging down those questionable-looking shakes. Those are protein shakes, and they are a fast and convenient way to increase your daily protein intake. Your body needs protein for nearly every physiological function, including building muscle and preventing fatigue. Now, the Air Force and Army are already testing the positive effects of protein supplements on our soldiers to help keep them going strong in tough conditions.
• Foods High in Protein: Top 10 Healthy Choices In addition to the protein shakes mentioned above, it's important to get plenty of protein from whole foods as well. Here's a list of 10 of the leanest, healthiest choices.

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