Hormones are very important for controlling inflammation, hunger, and fat storage, all of which contribute to weight gain.
2) Underlying Medical Condition
Underlying medical problems are another group of things that can cause people to gain weight without trying to.
3) Medications
Some medicines can change your appetite, hormones, metabolic rate, ability to hold on to fluids, and even how your body stores fat.
4) Lack of Sleep or Insomnia
Sleep is very important for controlling many bodily functions, such as the rate of metabolism, the way you feel hungry, and the production of hormones.
5) Lifestyle and Dietary Factors
Our daily habits, like the types and amounts of food we eat and how active we are, are very important to keeping a good weight.
6) Experiencing Heightened Stress Levels
Technically, nutritional issues, not getting enough sleep, and doing the wrong kind of exercise are all things that can cause stress on the body.