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Studies have found that meditation helps prevent the recurrence of depression, perhaps by producing changes in parts of the brain associated with learning and anxiety. A new study suggests that meditation may modulate brain waves called alpha rhythms, which help regulate the transmission of sensory input from the surrounding environment.

After eight weeks, the brain scans showed that alpha rhythms changed more quickly and in a more pronounced way in participants who had been meditating. “If you’re reading something in a noisy environment and you want to be in a bubble, you might use your alpha rhythms like a volume knob, to turn down the volume on neurons that represent sound from the outside world,

Studies have found that meditation helps prevent the recurrence of depression, perhaps by producing changes in parts of the brain associated with learning and anxiety. A new study suggests that meditation may modulate brain waves called alpha rhythms, which help regulate the transmission of sensory input from the surrounding environment.