Fitness Claims

A common explanation for why regular stretching improves flexibility is mechanical: the muscle is said to be physically lengthened — fascicl...

A common explanation for stalled fat loss is that the body has entered "starvation mode": metabolism has slowed enough to cancel out the cal...

A widely repeated reason women avoid creatine is that it causes noticeable water retention — several pounds of "water weight" and a puffy, b...

One of the most persistent worries about creatine is that it damages the kidneys. The claim is that regular supplementation (typically 3-5 g...

Social media claims that specific foods ("cortisol-triggering foods") chronically elevate cortisol, producing a "cortisol belly" and a puffy...

The advice not to stir creatine into coffee or tea rests on a real piece of chemistry: creatine in water slowly cyclizes into creatinine, an...

Electrolyte powders and drink mixes are marketed for daily use by the general population, on the premise that ordinary diets and plain water...

A persistent fitness myth is that performing exercises targeting a specific body part (e.g., crunches for belly fat) will reduce fat in that...