When it comes to the brain, a healthy diet, good sleep hygiene and frequent exercise are vital, but so is one other thing, says Dr. Richard Restak, clinical professor of neurology at The George Washington University School of Medicine and Health Sciences.
Restak, 82, is the author of more than 20 books about the brain.
In "The Complete Guide to Memory: The Science of Strengthening Your Mind," he shares science-backed ways to improve your memory and keep your brain sharp.
CNBC Make It asked Restak what he does to keep his own brain healthy.
"I learn new words, practice memory exercises, and [I] make them fun."
Persons:
Richard Restak, Restak
Organizations:
The George Washington University School of Medicine, Health Sciences, CNBC