The Pentagon is investigating apparent leaks of national security information as the Trump administration cracks down on details being shared with the press by federal agency employees. CBS News' ...

Starting a new strength training program? Here's how long it could take to see results in the form of muscle growth.

That satisfying feeling after completing a challenging workout ... nutrients depleted during exercise or provide the building blocks your muscles need to repair and grow stronger.

YOU DON'T HAVE to spend all your waking hours at the gym if you want to build muscle. Sure ... just by showing up and watching the clock, after all—to make your reps effective, you need to ...

You should eat within an hour after working out, Robles says. 4. Try muscle-building supplements There are many different supplements, like creatine or whey protein powder, that can help you build ...