Stress and cortisol
Chronic stress can promote the buildup of visceral fat, which makes it difficult to reduce weight because it raises cortisol levels too high. A hormone called cortisol is necessary for survival. It's produced by the adrenal glands and is referred to as a "stress hormone" because it helps your body respond to a physical or psychological threat or stressor.
Additionally, elevated cortisol levels in relationship to food may cause some people to select high-calorie foods as a source of comfort, which can result in undesired weight gain. This might result in an excessive intake of foods high in fat and sugar, which are quick and dense sources of energy. Chronic stress can also have an impact on other lifestyle choices that could result in weight gain, such as poor sleep habits, sedentary habits, and physical inactivity.