A miniature actigraph worn about the wrist (Mini Motionlogger, Ambulatory Checking, Inc. Ardsley, NY) was utilized to evaluate sleep excellent objectively, making it achievable to observe sleep under organic situations with nominal distortions. The actigraph measures wrist activity employing a piezoelectric element and interprets wrist actions into an electrical https://www.youtube.com/watch?v=PgNzdZr0_hg