Fight fatigue with fluids

If your energy isn't what you'd like it to be, you may think about vitamins or supplements to help get your pep back. But something as simple as making sure you are adequately hydrated can make a big difference in how you feel.

Water is essential for carrying nutrients to your body's cells and taking away waste products. Roughly 50% to 60% of your body weight is water, yet you constantly lose water through urine, sweat, and breathing. When you are low on fluids, your body may feel tired and weaker than usual. Consuming a sufficient amount of fluids in beverages and water-filled food (such as fruits, vegetables, and soup) will help replenish the water your body loses throughout the day and can help you maintain your energy.

Caffeine occurs naturally in coffee, tea, cocoa, and chocolate and is also added to some popular beverages. For some people, a cup of coffee or a can of cola is all it takes to get a little energy boost. Research suggests that drinking beverages with caffeine does not cause excess fluid loss or dehydration, so you can enjoy these drinks in moderation.

Find out how you can craft a high energy lifestyle with the latest advice on diet, exercise, rest, and stress management by purchasing Boosting Your Energy, a Special Health Report from Harvard Medical School.