That all changed in my late 20s to early 30s, as is the case for most people. That’s also around the same time that many people have other biochemical changes such as developing mental illness.

And of course, medications have severe side effects affecting metabolism, hormones, liver/spleen toxins, chemicals in fat, triglycerides, cholesterols, blood sugar, etc.

Some say that’s also around the time when environmental and dietary toxins have built up past a critical threshold. And of course, exercise routines, stress-levels, and behavioral/psychological patterns change a lot as people become of age and enter the workforce and/or start raising families.

We know that stress affects cortisol levels, for example, so even the psychological stuff matters. And people tend to do self-destructive things when they are stressed or depressed too.

So if you have a fast metabolism too, just be warned that it will probably change as you get older or if you continue your bad habits and/or poor diet. Either directly or indirectly it will come back to haunt you. Since you could prevent that, you might as well.

This is a really helpful article. Thanks