People gain weight by consuming more energy than they burn, so consuming fewer calories, or energy, can help.
However, other factors play a role, such as genetic factors, metabolism, hormones, the type of food you eat, your body type, and lifestyle.
Every year, at least 2.8 million people die due complications related to excess weight.
The health risks of excess weight include:
- a higher risk of diabetes
- certain types of cancer
Why lose weight?
There are many reasons for losing weight:
- Appearance: People may feel that if they lose weight, they will look more attractive, fitter, or healthier.
- Confidence and body image: People with excess weight or obesity may feel uncomfortable about their appearance.
- Overall health: Maintaining an appropriate weight can help to boost overall health and prevent diseases such as type 2 diabetes.
- Specific conditions: Symptoms of sleep apnea or type 2 diabetes, for example, may improve or go away when a person loses excess weight.
- Fitness: A weight-loss program that involves exercise can leave a person feeling fitter, with more energy and stamina
- Sports competitions: In some sports, such as boxing, an individual may seek to control their weight so that they can stay in their existing weight category.
- Fertility: Fertility treatment appears to be more effective in women with obesity and polycystic ovary syndrome (PCOS) if they lose some weight before treatment.
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