Shrey Aggarwal

Most exercise-associated muscle cramps aren't caused by dehydration or low electrolytes. The strongest evidence points to neuromuscular fatigue, and stretching the cramping muscle is still the fastest way to end one. Here's why the electrolyte theory doesn't hold up, and what actually works.

A 15-year-old who swims at 5:30am, sits through six hours of school, goes to tuition and then trains again in the evening can go eight or nine hours on one packed lunch and whatever the canteen sells. That's the pattern I see most often in teenage athletes, whether they live in Pune or Perth. The food at home is usually fine. The day around it isn't. Teenage athletes rarely need a complete diet overhaul. Most need small, specific adjustments: more food on heavy training days, better timing...

Golf nutrition for 18 holes: a proper pre-round meal, a carb snack every four or five holes, and steady sips of water keep you sharp on the back nine.