Long-distance trail running and extreme cardio activity led to red blood cell damage, per a new study. Here, doctors explain ...

A recent study delves into the science, but doctors say there’s more to it.

Burn calories and push your limits with this 20-minute intense cardio HIIT workout. Designed for advanced training, it targets the full body without any equipment. Perfect for building endurance, ...

Fittingly, the study showed that VO2 max scores were higher in more active states: DC (37.4 mL/kg/min), California (36.4 mL/kg/min) and Massachusetts (36.3 mL/kg/min) had the highest average scores.

The personal trainer Sana Shirvani used to regularly do intense workouts and restrict her diet. She ended up burned out, so shifted her focus to strength training and eating a balanced diet. Shirvani ...

A new study suggests that HIIT workouts may help preserve lean mass in older adults compared to moderate exercise—but changes were small. Here's what to know.

If you want to build a healthy, strong, and functional body, your best bet is to create a well-rounded workout routine. As you can likely guess, that means regularly performing both cardio and weight ...

Zone 2 cardio workouts have gotten a lot of love lately. The second least-intense type of cardio on a scale of 1 to 5, zone 2 involves raising your heart rate only a bit—to 60% or 70% of your max. It ...

Some dietary supplements can help improve endurance or power during training. Here are 5 supplements to consider adding to ...

Exercise or relaxation—which truly lowers panic attacks? New research suggests one clearly outperforms the other, and the ...