As the brain gets older, our blood vessels and thus the cells they support start to degenerate. The result is often more than just be forgetful (which is a sign of high intelligence!), perhaps into dementia and Alzheimer’s disease.

This video (4:41) discusses the results of research that show that Hyperbaric Oxygen Therapy expands the blood vessels and helps them regenerate. He speaks with a tough accent, but this is short and well worth listening to if you are old like me or have older people in your life.

I’ve actually done some hyberbaric chamber stuff, for different but similar reasons. Unfortunately, my plan for testing the results failed. I can note however, it gives you strange and vivid dreams!