Our brains aren’t limited to producing just one type of brain wave at a time, but usually, one type is dominant, and the type it is can often be linked to your level of alertness: delta waves may dominate when you sleep, while gamma waves might dominate when you concentrate intensely.

The idea: Researchers have previously observed that people with Alzheimer’s — a devastating neurological disease affecting more than 6 million people in the US alone — may have weaker and less in-sync gamma waves than people who don’t have the disease.

In a series of past studies, MIT researchers demonstrated a deceptively simple way to increase the power and synchronization of these waves in mouse models of Alzheimer’s: expose the animals to lights flickering and/or sounds clicking at a frequency of 40 Hz.

Organoids are an incredible tool for research into the brain. Cerebral organoids are created by growing human stem cells in a bioreactor. They might be the key to unlocking the answers to many of our questions about the brain. We explain how they’re made and some of the discoveries they’ve helped with so far!
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✍ Thumb by “Broken” Bran — https://twitter.com/BranGSmith.
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As big pharma interest grows in bioelectronics medicine, Astellas swoops in for a startup developing wireless, grain-sized devices powered by ultrasound for CNS disease monitoring and intervention.