Why is losing weight better in winter than in summer

The weight loss effect in winter is usually better than in summer, mainly due to factors such as cold environment promoting brown fat activation, increased basal metabolic rate, and natural appetite regulation. In cold environments, the human body activates the thermogenic function of brown adipose tissue, which efficiently breaks down white adipose tissue to produce heat. Brown fat exhibits significantly enhanced activity under low-temperature stimulation, continuously consuming energy to help maintain body temperature. This physiological mechanism leads to an increase in resting energy expenditure in winter compared to summer. Cold can also cause muscle tremors and heat production, further increasing calorie expenditure.

The secretion pattern of appetite regulating hormones changes in winter, with increased sensitivity to leptin and decreased secretion of ghrelin, naturally forming a mild calorie deficit. Low temperature environments can reduce the desire for cold drinks and sweet foods, and the intake of high calorie foods is generally lower than in summer. However, it should be noted that extreme low temperatures may induce a tendency towards overeating, and maintaining moderate exercise can better maintain appetite balance.

Winter weight loss can be combined with indoor aerobic exercise and resistance training to maintain a weekly exercise frequency. Pay attention to increasing the intake of high-quality protein and dietary fiber in diet, and avoid excessive dependence on high-fat foods to keep warm. It is recommended to regularly monitor changes in body fat, and adjust exercise intensity and dietary structure if there is a plateau period.