Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness ...

Tia Ainsworth's eating disorder left her too weak to exercise - now she's helping others to weight train.

If you've come across this trend on social media, here's what you should consider before adopting its workout routine.

"My doctor labelled me as 'overweight' and borderline 'obese.' The doctor barely looked at me before making that assessment," ...

The review will include standards for physical fitness, body composition and grooming, including beards, which are currently not allowed in the military, apart from some religious exemptions, ...

Measured in milliseconds, a normal HRV for adults can range from below 20 to above 200, depending age, gender, and other ...

The Pentagon will conduct a review of all military fitness and grooming standards, according to a memo Wednesday from ...

The Spirit Run isn't just for top tier athletes. It's an opportunity for anyone interested in living a healthy lifestyle to ...

Read one writer's experience taking a group fitness class they were anxious about, and how the experience was better than ...

Your lower body muscles are the engine of your golf swing and can help you generate more speed and distance efficiently. PGA ...

The department-wide review will analyze the standards of all U.S. military branches to ensure they are the "most lethal and effective fighting force." ...

Defense Secretary Pete Hegseth ordered senior Pentagon leadership to review how and why grooming standards, including beards, ...