Key to a younger, healthier you!

You know dodging dehydration helps you beat the heat. Now, a National Institutes of Health study suggests staying well-hydrated cuts the odds of feeling older than your years by 33%. Plus, it slashes the risk of longevity-hampering diseases-heart failure, dementia, stroke and diabetes-by 41%. The challenge? We often don't feel thirsty until we're already 1% to 2% dehydrated. By then, symptoms like headaches, brain fog and fatigue have begun to set in. To keep your fluid levels topped up, just...

- Melissa Gotthardt

Nosh on fresh produce

Surprise: Natural foods that contain water are more hydrating than plain old water! Indeed, enjoying two extra servings of fresh produce daily reduces your dehydration risk by 42%, say investigators reporting in The American Journal of Clinical Nutrition. Fruits and veggies contain "gel water," a form of fluid that releases water into the body slowly and steadily to hydrate cells more efficiently. While all fresh produce has gel water, you can find the highest levels in extra juicy options such as watermelon, cucumbers, tomatoes and berries.

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