Testosterone levels in men can go up and down throughout the day. Katherine Streeter for NPR hide caption

toggle caption Katherine Streeter for NPR

Test First Before Going For Those Testosterone Supplements

  • Download
  • <iframe src="https://www.npr.org/player/embed/306830577/307627439" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Katherine Streeter for NPR Katherine Streeter for NPR hide caption

toggle caption Katherine Streeter for NPR

Testosterone, The Biggest Men's Health Craze Since Viagra, May Be Risky

  • Download
  • <iframe src="https://www.npr.org/player/embed/305658501/307627433" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Consuming anywhere from about 2,600 milligrams up to almost 5,000 milligrams of sodium per day is associated with more favorable health outcomes, according to a study. iStockphoto hide caption

toggle caption iStockphoto

Nutrition researchers are reaching a new consensus: Cut back on all those refined carbs. And remember that some fat is good. Stacy Spensley/Flickr hide caption

toggle caption Stacy Spensley/Flickr

Rethinking Fat: The Case For Adding Some Into Your Diet

  • Download
  • <iframe src="https://www.npr.org/player/embed/295719579/297076428" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

If new guidelines are followed fully, half the medicine chests in America could eventually be stocked with cholesterol-lowering drugs such as atorvastatin, the generic form of Lipitor. Bill Gallery/AP hide caption

toggle caption Bill Gallery/AP

The rupture of a weakened portion of blood vessel (the dark blue spot in this brain scan of a 68-year-old woman) can prompt bleeding and death of brain tissue — a stroke. Simon Fraser/Science Source hide caption

toggle caption Simon Fraser/Science Source

Exercise helps lower stroke risk, but birth control pills and pregnancy can be problematic for younger women. iStockphoto hide caption

toggle caption iStockphoto

Even if you're under 25, you should still know your blood pressure, a study says. Rudyanto Wijaya/iStockphoto hide caption

toggle caption Rudyanto Wijaya/iStockphoto

Some men take testosterone hoping to boost energy and libido, or to build strength. But at what risk? iStockphoto hide caption

toggle caption iStockphoto