Fever, to get enough attention. The reason why fever is a natural reaction of the body to have lesions and inflammation in the body, the body produces self-protection mode, through immune cells such as white blood cells to kill pathogens and fever occurs, to achieve the purpose of treating the disease. Losing weight through fever is very bad and can lead to a decrease in immunity. Although fever itself increases the body’s basal metabolic rate and accelerates the metabolism may burn some of the body fat and appear to lose weight, it is still necessary to replenish water, drink warm water and warm juice to replenish the body’s energy so as not to cause a decrease in resistance and aggravate the condition. Fever as a way to lose weight is certainly not desirable.