Your weight essentially relies on your net calories. However, many other factors influence this formula, whether directly or indirectly, including the process of aging.

The key to maximizing weight loss through exercise is to always keep your body guessing. Changing your routine, varying the intensity or adding strength-training exercises are ways to maximize your workout. Don't allow your body to adapt to your routine.

The calories we consume provide energy and nutrients that our bodies require. Our best health comes from making good food choices from among carbohydrates, proteins and fats--and sometimes that is tricky. High-fat foods are also high in calories, but many low-fat or nonfat foods can also be high in calories.

Oral contraceptives, or birth control pills, first came onto the market in the 1960s.The number of available brands has grown exponentially since that time, according to Brown University. The hormones in oral contraception can alter the way your body metabolizes water and lead to temporary weight gain.

You don’t need to be a nutritionist or a personal trainer to know that cutting excess calories from your diet while increasing your activity level is the basic formula for successful weight loss.

A lot of people fast for a variety of reasons. Some may fast for cultural or religious reasons, while others do it for weight loss or cleansing purposes. When you are not consuming foods throughout a day, it could have possible effects on your energy levels and your overall capacity to perform certain tasks.

The 12-day Grapefruit and Egg Diet combines elements of two other popular fad diets, the Grapefruit Diet and the Egg Diet, into a single meal plan.

The key to weight loss is simple when you consume fewer calories than you use. Although this fundamental tenet of weight loss is simple, the execution is difficult. Once your know how many calories you use daily, you can then determine how many calories to eat to lose weight.

TSH is thyroid stimulating hormone, which is secreted by your pituitary gland when your body is running low on its active thyroid hormones, T3 and T4. T3 and T4 are involved in metabolism as well as other critical functions in your body.

Whether your doctor has recommended that you lose weight or you've decided to get in shape for yourself, losing 100 lbs. may seem impossible. By taking your weight loss one pound at a time, you can reach your weight-loss goals safely within a year.

Have you recently noticed your clothes getting looser or the number on your weight scale falling? Has your weight decreased despite your diet and activity level being the same? If so, then there may be a serious medical cause for your weight loss. It is important to know the different causes and when to seek help.

Low-carb dieting doesn't have to be endless plates of bacon and huge T-bone steaks. You can easily follow a low-carb plan without visiting a steakhouse or meat aisle. If you eat fish, a low-carb diet should be a breeze. Focus on wild-caught salmon and other fish, and incorporate plenty of protein, fiber and good fats.