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Understanding the role vitamins and minerals play in the body is the key to understanding what we need and why. For those of us who generally eat a well balanced diet, taking vitamin tablets may not necessary. There are, of course, exceptions, including pregnant and lactating women, those who suffer bone loss due to osteoporosis, and adolescents who need calcium for the development of their bones. While vitamin tablets may not be necessary, minerals, on the other hand, may need to be supplemented, depending on age, gender, and doctor recommendation.

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Develop a powerful core with this improved squat.

Performing endless abdominal crunches isn’t the only — or even the best — way to sculpt a rock-solid core. Multimuscle exercises, such as the braced squat, build a stronger foundation for your body and more muscular legs, says Alwyn Cosgrove, C.S.C.S.

The Benefit
The braced squat looks like a lower-body exercise, doesn’t it? But the primary goal is to overload your core, says Cosgrove. The movement helps you develop a stronger midsection, which improves stability, performance, and strength. A strong core will pay off on the court or in the field.

How to Do It
1. With your feet shoulder-width apart, hold a 25-pound plate in front of your body at shoulder height with your arms outstretched.

2. Keeping your arms straight, squat as low as possible. Hold the position for 4 seconds.

3. Return to the starting position by pressing through your heels. Make sure that the only changes in your center of gravity come from the lowering and raising of your body, not any backward or forward movement. Aim for 1 to 2 sets of 10 to 12 slow reps, with 60 seconds of rest between sets.

Expert’s Tip
Work your arms by doing a curl at the top of each rep: Stand with arms outstretched and curl the plate toward your upper shoulders. Extend your arms as you lower your body.

While machines might seem like the foolproof way to exercise, they aren’t always the safest. In fact, sometimes they actually contribute to the injuries you were trying to avoid in the first place. Here are 6 machines you should lift without.
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Exercise machines weren’t created to punish guys who eat too much. That’s what diets are for. But men spend hours, day after day, churning their arms and legs and waiting for the StairMaster or treadmill to make their bellies vanish. The result: They make it about as far as the average rat.

But your machine workout doesn’t have to be a road—or row—to nowhere. “By decreasing the duration and varying the intensity of your exercise sessions, you’ll get better results in less time,” says Chris Carmichael, founder of Carmichael Training Systems and coach to Lance Armstrong.

Try this guide to the five most popular exercise machines, with a high-intensity 20-minute workout geared for each. Your goals: Bust your exercise rut, and your gut, in record time.

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