And then be sure to replenish your body postrun with protein and more carbs.

High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.

Your heart rate zones might be completely wrong. Not only are zones defined differently in different apps, they are also ...

Concussions may cause several types of symptoms that begin immediately or hours to days later. Here's what research shows ...

I’ve been using the Apple Watch for 10 years, covering and using great apps for fitness, and productivity, and even passing ...

Improved cardiovascular health. Cardio is key to maintaining good heart and lung health, says Landicho. White agrees, adding ...

Neuro data provides a level of insight into the driver’s condition and cognitive state that is not possible with a ...

Fitness gadgets and apps (and books and other sources of fitness advice) try to skip that step by using a formula that estimates your maximum heart rate based on your age. The most popular formula ...

Several years ago, a patient asked me what she could eat to treat hypothyroidism — a medical condition characterized by abnormally low levels of thyroid hormones. She was correct to be concerned.