Many people are looking for ways to gain a mental edge. My guest this week is psychologist Dr. Martha Farah; as a brain scientist and pioneer in the field of neuroethics, Martha has thought a lot about ways to enhance our cognitive ability. She shares her insights on the effectiveness of stimulant medications, drugs for Alzheimer's, and direct stimulation of the brain to make healthy brains function even better. We also explore natural ways to enhance our mental abilities. 

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