If you really want to, the way to increase intelligence is to - pre plan avoiding the errosive. Your intelligence is limited by age, the quantity of meaningful contributions will diminish by time, you peak in your early 20s.
If you really want to then ingest lots of nutritionally rich food. Go swimming.
Take up a meaningful occupation. I entered into a law degree.
Listen to mass quantities of information.
I used
https://sensusaccess.com to covert documents into audio.
If you can, do hard maths.
Unfortunately intelligence is hard capped by a different factor that would be great if it were avoidable. Will do a post in the future.
