Nonlinear associations between sleep patterns and sarcopenia risks in older adults Nonlinear associations between sleep patterns and sarcopenia risks in older adults Download Non–24-hour sleep-wake rhythm disorder not driven by central circadian clock dysregulation: is it not “intrinsic”? Past-year use or misuse of an opioid is associated with use of a sedative-hypnotic medication: a US National Survey on Drug Use and Health (NSDUH) study