What is the one thing that will increase your child's intelligence - cheap?

Live healthy and long

From Dr Mercola's site

What is the one thing that you can to to increase your child's intelligence?

Send him to a Kumon, exclusive school, buy him/her plenty of books?

Send him/her to study abroad?

All wrong...!! All he/she has to do is exercise.  30 minutes exercise daily which can consist of

5 minutes warm up

30 seconds high intensity exercise

90 seconds recovery;

8 reps for the above and

Cool down for several minutes

High intensity and interval training encouraged the production of BGH (brain growth hormone)

There were several findings that right after exercise, reading and solving ability increased by 10% even after 10 minutes of exercise.

Exercise allowed brain cells to grow by production of BGH (brain growth hormone)

Exercise benefitted mental health with the production of brain derived neurotrophic factr (BDNF)