Health Claims

Not eating enough calories or carbs can lead to serious health and performance problems in athletes, like burnout and hormonal issues.

Most studies show that when athletes push too hard and start showing signs of overtraining, they're often not eating enough calories or carbs to fuel their bodies.

Some athletes who are told they're just overtrained might actually be low on fuel — their bodies aren't getting enough energy or carbs — which can look like overtraining but is really a different...

New tech can scan hundreds of chemicals in your body, including fat-based messengers, to create a personal 'metabolic fingerprint' that might catch early warning signs when athletes are pushing...

There's a tool called 'Olympic Squares' that checks athletes in five areas—like how they're performing, how stressed they are, and how well they're eating and recovering—to help figure out if they're...

To diagnose overtraining in athletes, doctors need to rule out other health issues like low nutrients, infections, or energy deficiency, because those can cause similar symptoms and often happen at...

When athletes train too much without enough recovery, their brain and body systems—like brain chemicals, hormone responses, and muscle energy production—can go out of balance, leading to overtraining...

If athletes push themselves too hard for too long without enough rest, they can develop a serious condition called overtraining syndrome, where their performance gets worse and just won't improve —...

Athletes who are overtrained might have an imbalance in their nervous system, with their body being in 'rest mode' too much and not balancing properly with 'active mode'.

Athletes who are overtrained tend to feel more tired, stressed, sad, or confused—and less energetic—than healthy athletes. Tracking these feelings might help spot overtraining.

Athletes who are overtrained might have a less responsive stress and hormone system, which shows up as weaker hormone reactions during a special medical test.

Athletes who are overtrained might have messed-up hormone levels — like lower testosterone and higher stress hormones — which could explain why they feel so drained and don’t recover well.

Some scores that combine health, hormone, and body measurements might help tell the difference between male athletes who are overtrained and those who aren’t — but right now, there’s only one small...

Brazilian gym teachers who train a lot each week don’t seem to get overtrained — but the study didn’t actually measure key body signals like stress hormones or muscle damage, so we can’t be sure.

Brazilian gym teachers and fitness pros say they don’t feel bored or overly tired from their workouts — even though they train a lot — which suggests their routines stay fun and fresh.

Gym trainers and fitness pros in Brazil don’t seem to have many sleep problems — on average, their sleep quality scores are pretty good, below 3 out of 5.

Brazilian gym teachers who do strength training, cardio, or both seem to have the same chances of mood issues or overtraining risks — none of the workout types stands out as better or worse.

PE teachers who recover well and eat shortly after their workouts are less likely to experience the symptoms of overtraining or burnout.

Even when gym teachers and fitness pros work out way more than the usual recommended amount, most don’t burn out or feel worse — only a small number say their performance suffers.

Physical education pros who do lots of cardio, strength training, or both seem to have similar mood patterns — and most of them have a healthy mental profile, no matter which type of workout they...

Brazilian gym teachers and fitness pros who train hard—over 5 hours a week—say they don’t feel overly tired or burned out, and their survey scores show they’re doing okay mentally and physically.

Athletes who follow a training plan that includes rest and changes in workout intensity are less likely to get overtrained.

There's no single blood test or clear sign that can definitively tell if someone has overtraining syndrome. Doctors instead use a mix of mood surveys and lab tests like cortisol or testosterone, but...

Women Paralympic athletes are more likely than men to get overtrained and suffer bone injuries because of their hormones and higher risk of not eating enough.