Around 70-90% of people have PMS symptoms at one time or another. Besides weight gain, PMS can cause other discomforts like cramps, sleep issues, fatigue, headaches, stomach issues, and back aches.

Weight gain medications—like some steroid-, cannabis-, and hormone-based prescriptions or supplements—may promote weight gain. Some chronic illnesses, surgery, and trauma to the body can lead ...

OSA can also cause you to gain weight because of its negative effects on your day-to-day functioning and hormone levels. It may seem like a catch-22: The less you sleep due to sleep apnea ...