WEDNESDAY, Feb. 15, 2023 (HealthDay News) Sleep irregularity, especially irregular sleep duration, is associated with measures of subclinical atherosclerosis, according to a study published online Feb. 15 in the Journal of the American Heart Association. Kelsie M. Full, Ph.D., M.P.H., from Vanderbilt University Medical Center in Nashville, Tennessee, and colleagues examined cross-sectional associations of