An international group of scientists from Japan and Australia has identified two essential genes involved in the regulation of rapid eye movement (REM) sleep.
Sleep is a universal and vital behavior in animals. In higher vertebrates such as mammals and birds, sleep is classified into two phases, REM sleep and non-REM sleep.
In the new study on mice, scientific team found that two acetylcholine receptor genes — Chrm1 and Chrm3 (cholinergic receptor muscarinic 1 and 3) — are essential for REM sleep.
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