Are there any studies for this? I feel like my eating habits haven't changed between my 20s and 30s and I've also not noticed any increase in weight. Or at which age would that start? Ironically, the only thing I could find was this, saying "these results strongly suggest we may no longer be able to blame weight gain in middle age on a slowed metabolism", since metabolism changes seem to only occur at 60+
You’re correct, the actual cause is a changing lifestyle.
It's much more related to people changing their activity level as they get older.
If you're still as active in your 40s as you were in your 20s, you'll burn basically as many calories.
I was very active 8 years ago.. but now my knees and back hurt all the time.. 🫠
One thing that I'm sure is helping me is that I don't have a desk job. I'm in my late 30s and feel great most days. Being active and exercising can help a ton.
