By Dr. Liji Thomas, MD Reviewed by Lauren Hardaker Mar 18 2026 A decade-long national survey reveals a troubling trend: more US teenagers are becoming obese as motivation to lose weight declines, raising urgent questions about shifting health behaviors and disparities among youth.  Study: Trends in Obesity, Overweight, and Attempted Weight Loss Among United States High School Students . Image credit: Sergio Arjona/Shutterstock.com Rising obesity rates among American adolescents pose a growing