'Leptin is the hormone that inhibits hunger so diet drinks like Diet Coke actually make you hungry and less satisfied with normal amounts of food, and finally when you eat or drink a lot of chemicals that your body simply cannot break down, your body makes more and more internal fat to wrap the chemicals in keeping those harmful chemicals away from your vital organs.
Also, a few things can cause early menopause such as smoking. If you've had a hysterectomy (the removal of the uterus without the removal of your ovaries) you may go into menopause a little earlier than you normally would have because of the decreasing hormones and waning effects on the ovaries.
But, some women can experience menopause early, either as a result of a surgical intervention (such as removal of the ovaries) or damage to the ovaries (such as from chemotherapy). Menopause that occurs before the age of 45, regardless of the cause, is called early menopause. Menopause that occurs at 40 or younger is considered premature menopause.