The average human can have between 10 to 30 billion fat cells. The amount of fat cells in a person’s body is set during adolescence and levels off into adulthood; however, if you are an obese child, you will add twice as many fat cells compared to a child of average weight as you mature.

The rate of weight gain varies for every woman depending on the conditions of her pregnancy. Weight loss is not typical and should be discussed with a medical care provider.

Weight loss can affect your kidneys, sometimes in unpredictable ways. If you already have kidney disease, your doctor may suggest that you gain weight or avoid losing weight.

Prometrium is a brand name for the hormone progestin, which is used to treat a variety of conditions. Doctors use Prometrium primarily for treating women who do not have a menstrual period due to a lack of progesterone in the body. A common side effect of Prometrium is weight gain.

Tapazole is a form of methimazole used to treat hyperthyroidism, a condition in which the thyroid gland produces excess thyroid hormone, according to MayoClinic.com. Having hyperthyroidism can cause an increase in your metabolism and sudden weight loss.

You are trying to lose weight and, actually, you were doing just fine until recently.

You've been faithful to a healthier eating plan and working out at the gym, and the number on the scale is even going down. You notice your clothes buttoning a little easier, less bloat to your belly and a slimmer appearance to your face.

People who are looking to lose large amounts of weight -- 60 or more pounds -- must look beyond fad diets and short-term workout plans. To lose more than just a couple of pounds, you'll need to implement a more concerted and long-term effort.

Diurex is an over-the-counter diuretic product that can be used in conjunction with a sensible diet and exercise program to accelerate weight loss. Diuretics are substances that increase water elimination from the body.

When you're dehydrated, you may notice a significant drop on the scale and wonder how you suddenly lost several pounds so quickly. Even if your goal is to lose weight, losing it through dehydration isn't the way to go. Your body needs fluids to function, and dehydration can quickly become a life-threatening issue.

Metformin, sold under the brand name Glucophage, is a diabetes drug that can improve insulin sensitivity and promote weight loss by helping lower glucose levels and prevent hunger.

If you suffer from poor sleep due to carrying excess weight, you may already be familiar with CPAP, or continuous positive airway pressure, which is a treatment for sleep apnea through which a machine keeps your airways open by wearing a mask over your mouth and nose. Studies published in "