Dr. John Medina Talks At Google About Brain Science

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Dr. John Medina, developmental molecular biologist, gives an informative and humorous talk at Google about brain science and his book “Brain Rules”.

In this talk he talks about brain rule number one which is that aerobic exercise boosts cognitive performance especially executive function. He says “if you have an active lifestyle you have a 50% reduction in the risk of Alzheimer”. He answers the question of how much exercise if required to get these benefits: Two to three times a week for 20 minutes per session. Aerobic exercise increases blood flow to the dentate gyrus of brain and elevates BDNF which is like Miracle Grow for brains.

Then he talks about stress on the brain. Stressed brains does not learn the same way and hurts learning. He says “stress damages cognition in virtually every way cognition can be measured.”

And he ends with the most important brain rule of all: curiosity.