Intermitten fasting, NMN (said vitamin B), red-light therapy, regular daily excersize, paleo diet and a few other things combined appear to do wonders in age reversal and restoration of cognitive ability, eye-sight and even hair-color.
Intermittent fasting:
Having food in your gut all the time means your body is in permanent digestion mode which limits your abilities to exercise and give 100% effort. Let your stomach empty sometimes. It feels great. You will not starve to death.
NMN (said vitamin B):
I have no idea what NMN is, but Vitamin B makes a difference in cognitive abilities. (don't use me as an example!)
red-light therapy:
No idea what this is. Red light is easier on the eyes at night. *shrug*
regular daily excersize:
Why does exercise seem misspelled? Regardless, this one is obvious in its benefits. If you don't move, you arteries and veins and muscles all become useless.
paleo diet:
Staying away from processed carbohydrates with fillers and HFCS will do absolute wonders for your weight and energy levels. Stop eating garbage... but you don't have to go paleo, just stop eating garbage.
Long story short, all of these things are absolutely wonderful for your health. They reverse aging exactly zero. Don't believe the bullshit even if you do feel younger after engaging in all of this stuff.