Teen Development: Puberty Stages, Growth & Muscle Gain

Puberty involves five distinct stages that impact both physical growth and psychological wellness. Proper nutrition is essential for supporting growth spurts and helping teenage boys safely gain muscle.

The Normal Weight Range of a 15-Year-Old

Published Jun,13 2017 | By Pha Lo

While healthy weights for adults are set by body mass index -- BMI -- charts, healthy weight ranges are difficult to determine for children and teens. It is hard to state a "normal" weight for a 15-year-old, and more important to advise a healthy BMI-for-age range.

Pha Lo has received fellowships from the American Society of Newspaper Editors and the California Women's Foundation. Her work has been published in the "San Francisco Chronicle," "Sacramento Bee," "Pacific News Service" and "Audrey Magazine." She graduated from the University of California at Berkeley with a Bachelor of Arts in political science. Lo is a nutrition educator and a certified food safety manager.