Testosterone levels drop as a man gets older and hits his 50s and beyond. Excess weight is piled on, particularly around the belly and chest. The Mayo Clinic believes excess fat carried around the midriff increases the risk of heart disease, stroke, some cancers and type 2 diabetes.

As you age, you need to eat fewer calories, stay active and make healthy food choices to control your weight. Maintaining a healthy weight helps you feel energized and active, and it lowers your risk of chronic disease.

Insanity is an at-home workout program created by Shaun T and produced by Beachbody. The program consists of ten DVD's and a schedule to cue the participant of what DVD to do each day.

Working with genetic and environmental influences on the body's internal clock, the hormone melatonin regulates daily biological functions of sleep, immune function and metabolism.

When you gain weight, you rarely assume it's from your medication. However, certain medicines, such as antipsychotic medication, have a tendency to cause weight gain. In fact, if you look at the side effects on the medication information page of traditional antipsychotic medications, you will see weight gain listed.

Low-carb dieting is a great way to lose weight quickly and get that super-lean conditioning that is necessary for a competition-winning physique. However, adding carbs back to the diet after a stint of low-carb dieting can cause a "yo-yo" effect if done too fast or incorrectly.

If you’re having trouble fastening your waistband, the extra weight in your belly that's causing the problem probably didn’t happen overnight.

Weight loss can help you look and feel better, and might even lower the risk of certain diseases, such as heart disease and diabetes. A diet doesn't need to be overly restrictive, though, and making specific foods off-limits can potentially make them more desirable.

Intermittent fasting, which gives your digestive system a rest, can energize your metabolism to burn fat and help you lose weight. The key is to balance fasting with a healthful diet and exercise, and to not take it to extremes. If you have any health concerns, see your doctor before trying a fast.

"Starve a cold, feed a fever." These oft-heard words of wisdom may not be so wise. Scientific research shows that some foods contain compounds that enhance immune system function and make humans better able to fight infection.

Just because you've been able to carve out 90 minutes a day for cardio doesn't mean you should be doing that much -- at least at first. Unless you're already fit, going for 90 minutes at a time every day might be too much. It's important to start slowly and give yourself breaks to prevent burnout and injury.

Although some diet pills might be effective, there is one thing they are unable to do, and that is spot reduce fat from a specific area of your body. If you want to lose weight from your belly, thighs and neck, you must focus on decreasing fat stores throughout your body by burning calories.