09/02/2026
The most common thing I see in young athletes isn't overtraining. It's under-fueling and almost none of it is on purpose.
It starts innocently. A growth spurt. A second sport. A schedule that quietly became three practices and a tournament weekend.
Demand goes up. Intake doesn't follow.
Leave that gap open long enough and the body starts making cuts: hormone production. Bone building. Immune function.
Sports medicine calls it RED-S or Relative Energy Deficiency in Sport. It shows up in boys just as much as girls.
What parents notice first:
→ Fading late in games
→ Getting sick constantly
→ Recurring injuries or stress fractures
→ Always cold, or hair shedding
→ Periods that got irregular or stopped
No single one looks like an emergency. The pattern is the signal.
When 30–40% of adult bone mass is built during adolescence. Growth is an invisible extra workout happening every day, whether your athlete trained or not.
Our job isn't to fuel the sport. It's to feed the growth that has to last a lifetime.
If a few of those signs sound familiar, don't wait it out: https://www.spanathletics.com/span-athletics
Stacy Bates