Can Stress Cause Weight Gain?
I don’t know about stress causing weight gain on its own, however it’s typical for people to gain weight as they age (and metabolism slows), if they continue to eat exactly the same amount and exercise exactly the same amount. In order to maintain your weight, or lose weight, you need to lower your calories and/or increase your exercise as you age. This site says stress can cause weight gain, based on a release of hormones that slow the metabolism, but I’m not sure how reliable it is.