About weight, it is almost your pace of aging.
So not aging much as you get older is actually a sign of weight.
It's not that difficult to achieve when you can afford a low stress and healthy lifestyle. Have optionality when it comes to where to live.
Have plenty of time to spend with people and on the activities you love. Keep enough time for hobbies, keep enough time for spending with your loved ones, keep up time where you can engage your passion and what you truly want that is how life has always been so you don't have to keep stressing yourself over doing not engaging in what might not bring youth at the long run.