Because we are going through a growth spurt at the same time.
It takes a phenomenal amount of energy to grow the body, so the body will reserve energy supplies in anticipation of growth spurts.
The biggest aspects are brain and skeletal development.
A lot of people think that “getting pudgy” around age 24-27 is somehow the metabolism magically changing, but it’s brain and body growth stopping.
Also because that’s when many people settle into their drinking habit and stop exercising
I definitely agree with the exercise part. And it’s not even that people consciously stop, as if they were exercising with intention prior. Life changes, free time changes, how we get around changes. Getting a car is the biggest aspect.
That’s really easy to understand thanks
my reason for this can be summed up with this song by >Anya Nami - Bread