Low thyroid among Americans ranges from 5% to 20% due to variables constituting what’s normal. But for those diagnosed and receiving treatment, there’s a warning about the most commonly prescribed medication for the condition…

Congratulations! You worked hard, pushed through the struggle and reached your goal weight. Now comes the challenge of keeping it off. Good news: Research suggests fewer daily steps than previously thought may help prevent those pounds from creeping back.

While sleeping, your brain switches on a powerful anti-aging hormone that helps preserve muscle and bone, reduce fat and support a healthier metabolism. Scientists have uncovered the brain circuit behind it, and how to help keep it working as you age.

Your immune system can get tired with age, but what if aging immune cells could act young again? Researchers are studying a compound that may help T cells renew their power source. And your gut may be able to make it from foods you already know.

Monounsaturated fats (MUFAs), found in olive oil, avocados and nuts, may help strengthen immune cells and improve their ability to survive stress. But balancing MUFAs with polyunsaturated fats (PUFAs) appears key to optimal immune function…

Everywhere you go, someone is coughing or sneezing, spreading germs you might not be ready to handle. Strengthen your protection against respiratory infections now, not just to avoid getting sick, but to lower the risk of hospitalization if you do…