Study: Insomniacs have more active brains

15 percent of Americans report having trouble falling asleep.
By Aileen Graef Follow @AileenGraef Contact the Author   |   March 4, 2014 at 11:07 AM

BALTIMORE, March 4 (UPI) -- According to a study by Johns Hopkins University, insomnia is not just a condition at night but a 24-hour condition that affects people with more active brains.

The study compared the brain plasticity of 18 insomniacs with 10 people who had no trouble sleeping. Researchers used trans-cranial magnetic stimulation (TMS) to send magnetic pulses to the brain to the area that controls thumb movement. They then directed the thumb movements from the brain, and after evaluating the movement of the thumb, they were able to gauge the subject's brain plasticity.

The TMS showed that they had greater brain plasticity, and previous studies indicate that insomniacs' brains work differently than those who can fall asleep normally, making them more susceptible to a disrupted sleep.


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