There’s a fine line between music performance anxiety and excitement, but as a teacher you have the power to turn flutters ...

A biohybrid hand which can move objects and do a scissor gesture has been created. The researchers used thin strings of lab-grown muscle tissue bundled into sushilike rolls to give the fingers enough ...

The image looks like a slice of highly marbled flesh, reminiscent of a high-end steak with abundant fine-grained streaks of fat. But that’s not dinner. It’s an MRI scan of the thigh of a 62-year-old ...

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 ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Katrina Carter, DPT, FNS, is ...