Keep learning new things.
Learn cursive and develop your own handwriting.
Writing down things physically makes learning way easier. And keeps your brain young - because, there is a reason why dementia is hitting some people in their 40s.
Edit: brush your teeth and floss every day. If you don’t like to floss every day get a water flosser for those days.




Keeping your mind young is primary concern.
Dental hygiene you should already have.