Sonic Vitamins

Article by Dr. Ryuta Kawashima

Why should you train your brain?

This book is a follow-up to Train Your Brain: 60 Days to a Better Brain. I’ve received lots of letters from readers since the first book came out, and I’m delighted to know that people all over the world are now making these drills a regular part of their daily routine. To keep things fresh, we have made one change to the format of the exercises. We have included… Continue reading →