Brandon is 17. In this video, he talks about gaining 140 pounds during his childhood and teen years, and how he took charge of his weight and lost 70 pounds. The simple act of riding his bike to school not only got Brandon on track for weight loss — it also inspired him to do things he couldn't have imagined doing before. Today, Brandon is a lot more confident — and he's training to take part in a triathlon. Check out his story in this video. Back to Articles Related Articles Nutrition & Fitness Center Visit our nutrition and fitness center for teens to get information and advice on food, exercise, and sports. Read More When Being Overweight Is a Health Problem A couple of pounds of extra body fat are not a health risk for most people. But when people are severely overweight, it can cause health problems. Read More Emotional Eating We've all eaten a whole bag of chips out of boredom or while cramming for a big test. Learn more about emotional eating, and how to manage it, in this article for teens. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.