We are generally poor at describing our mental state. Our friends generally do a better job on identifying if we are depressed. 25% of the world will develop a serious brain malfunction in their lifetime. If you spend 10-100 hours in an fMRI, we can read your thoughts. 40 Hz flickering LED light induces gamma oscillations in the brain. After 1 hour of exposure, she saw a 50% reduction in amyloid plaques in a Alzheimer’s rat model. Expansion microscopy is the opposite of normal microscopy. Instead of zooming in on the brain, you make the brain bigger with a polymer expansion similar to the gel found in super-absorbent diapers. Ed Boyden’s team can trigger brain activity at a targeted deep area with a pair of acoustic waves at close frequencies, like 2.00 and 2.01 Hz

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