My son goes to the gym a lot. How can I tell if this is healthy or a sign something is wrong?
A teenage boy goes to the gym several times a week. He takes protein powder and watches what he eats carefully. He talks about being "ripped" or "jacked."
Read original article on Phys.org - latest science and technology news stories →Related news
-
Big Controversy Upends a Contest About Microscopic Videos
-
Adjustable nanosensors turn water pressure into fluorescent signals, with stiffness shaping sensitivity
-
Cancer Vaccines Are the N.I.H.’s Next ‘Big Bet’
-
Wavy-shaped homes could limit damage from hurricane winds
-
Climate change drives new species combinations, prompting calls to rethink conservation goals
-
Polar oceans store carbon—but policy is not yet ready to count it
-
Fluorescent imaging tracks metabolism of cells in real time
-
Cyberbullying rarely occurs in isolation—it functions as an extension of school violence, say researchers