Although there’s no cure, there are things you can do to help prevent, delay, or slow down Alzheimer’s disease and dementia, reports Reader’s Digest.

“Sleep hygiene is rapidly emerging in the field of Alzheimer’s research,” says Pierre Tariot, MD, director of the Banner Alzheimer’s Institute in Phoenix, Arizona. “There’s mounting evidence that sleep is one of the ways that we clear toxins from the brain and central nervous system.” Try to get at least eight hours of good sleep every night, and if you can’t, supplement your sleep time with naps.