Calories in vs calories out is true at any age.
In the 30s, life is starting to stack up. Career, kids, etc. These things easily dominate your schedule and can keep you from eating well, or hitting the gym or sleeping as much as is needed.
Also, years of beer can catch up to you and there’s so many calories in that.
Also get your blood work checked. If your hormones aren’t where they need to be, it may be harder to build and maintain muscle. Muscle burns more calories at rest than anything else so skipping muscle quantity can result in a snowball effect of weight gain and unhealthiness.
Beer.
HelixDab2@lemm.ee 9 months ago
It’s actually complicated.
I spoke with a PhD physical therapist about this (his undergrad work was in exercise physiology), and at about 40, all other things being equal, you’re going to start losing muscle mass. By “all other things being equal”, I mean that even if your diet is identical, you exercise at the same intensity, and through some previously unknown magic (e.g., drugs) you have identical hormonal levels to your 18yo self, you’re still going to end up losing muscle mass and strength when you get somewhere in your 40s. He explained the basic outlines of the mechanism, but I simply don’t have the science background to understand it, or to explain it.
That loss of muscle mass means that you’re simply not going to be burning through calories. Muscle burns more calories per kilogram than fat does.
So, that’s part of it; there’s just a certain level of decline that’s going to happen with age, and there’s nothing you can do to prevent it.
But the other part is that activity levels do tend to sharply decrease for men (and women) outside of their 20s, while what they consume does not. Once you start having kids and/or other responsibilities, it’s hard to find time to maintain the same level of physical activity that you might have previously had.
Annoyed_Crabby@monyet.cc 9 months ago
Thanks for the depressing info.
Carnelian@lemmy.world 9 months ago
Hi, sorry for responding to a week old post,
This is called “Sarcopenia”, or, the age-related loss of muscle mass.
The good news is that it can be nearly entirely mitigated by strength training. To be clear, you can’t be an 80 year old with the same strength as a 30 year old powerlifter, but you can as an 80 year old maintain the strength of an average 30 year old. It’s been demonstrated very consistently, even if you only start training in your 70s