A gene known as ACTN3 (α-actinin-3) has earned the nickname “the gene for speed,” and it may have an influence on how androgens work through the androgen receptor to maintain muscle mass. Research has ...

Stephen Clark, an Atlanta-area physical therapist, sees many patients who suffer from muscle guarding after a traumatic surgery or injury. Muscle guarding, which emanates from the brain, is a physical ...

Is your body trying to tell you something? TikTok’s latest health hack has users ditching nutrition labels and instead relying on “muscle reactions” to judge which foods are good for them. Fans claim ...

Mechanical vibrations could help improve our muscles and our balance control, according to research at Aston University. Researchers in the College of Engineering and Physical Sciences have examined ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Not everybody has the ...

The human body comes with some strange quirks. Stacker reveals the explanations behind some of the weirdest reactions, like ...

Kimberly Dawn Neumann is a New York City-based magazine and book writer whose work has appeared in a wide variety of publications, including Women’s Health, Health, Cosmopolitan, Fitness, Prevention, ...

There's a lot of chemistry involved in your body and bulking. Reactions is helping you build muscle with protein and science. There's a lot of chemistry involved in your body and bulking. For those ...

Unexplained muscle pain in the arms and legs may be the result of benign issues. Or it may point to a more serious underlying condition, such as fibromyalgia, infection, or thyroid issues. Muscle pain ...

Electrical muscle stimulation involves sending electrical impulses through the skin. This stimulation may provide benefits, such as helping to repair tissue and strengthen muscles. The electrical ...