Confocal images of cells in an area of the brain stem called the PPT show expression of the neurotransmitter acetylcholine (red) and of a light responsive protein (green). The merged image on the ...

Sleep disturbances may accelerate neurodegeneration, but whether they cause or result from disease remains unclear. Improving ...

Dreams occur during REM (Rapid eye movement) sleep, if we wake up before we ... High levels of neurotransmitters such as ...