The caps had tubes inside filled with water. The researchers moved the water through the tubes and then changed the temperature of the water. Other studies showed that people who had trouble sleeping often had more chemical reactions in the front of their brains. The researchers thought lowering the temperature of the brain might help.
FAITH LAPIDUS: The first two nights of testing, the patients wore no water caps. During the next two nights, the caps were worn, but the water was not cooled. Then the researchers cooled the water a little for two nights. On the final two nights of the study, the temperature of the water was made much cooler.
The researchers found that the water caps did not help the insomnia patients until the temperature was about fourteen degrees Celsius. Most of the patients fell asleep faster and slept better when the coolest water was moving around their heads.
Dr. Nofzinger and Dr. Buysee noted that this is only the beginning of the brain temperature study. But they believe they have discovered something important that needs more research. They presented their test results in June at a meeting of the Associated Professional Sleep Societies in Minneapolis, Minnesota.
(MUSIC)
A rhino eats water plants from a river in the Janakauli community forest bordering Chitwan National Park in Nepal
BOB DOUGHTY: Scientists completed a census in Nepal recently. This population study, however, did not count people. Instead, biologists and other people counted the number of greater one-horned rhinoceros in the Himalayan nation.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25