Do Sleep Patterns Affect the Risk of Cognitive Decline?

Older CoupleVANCOUVER—The quality and quantity of sleep may be associated with the risk for cognitive decline, according to four studies presented at the 2012 Alzheimer’s Association International Conference. Treatments for insomnia or circadian rhythm delay might reduce or prevent cognitive decline, investigators reported.

Sleep Duration and Cognition
Compared with a sleep duration of seven hours per day, sleep durations of five or fewer hours per day and of nine or more hours per day were associated with worse average memory at older ages, according to Elizabeth Devore, ScD, Associate Epidemiologist at Brigham and Women’s Hospital in Boston. Short and long sleep durations at midlife and in later life were both associated with worse memory in later life. [Read more…]

CPAP May Ease Depression

By Ed Susman, Contributing Writer, MedPage Today

Published: June 14, 2012.
Reviewed by Zalman S. Agus, MD; Emeritus Professor, Perelman School of Medicine at the University of Pennsylvania and Dorothy Caputo, MA, BSN, RN, Nurse Planner

Obstructive sleep apnea patients who use — or even try to use — continuous positive airway pressure (CPAP) devices appear to reduce their overall depressive symptom scores, researchers said here.

In every category measured, patients reduced depressive symptoms, even if they were not using the CPAP devices as prescribed, Charles Bae, MD, of the Cleveland Clinic College of Medicine at Case Western Reserve University told attendees at the annual meeting of the Associated Professional Sleep Societies. [Read more…]

CPAP for Sleep Apnea May Prevent New Hypertension

May 23, 2012 — A pair of studies released this week confirm an association between obstructive sleep apnea (OSA) and hypertension, and hint that adherent continuous positive airway pressure (CPAP) therapy may reduce the risk for new-onset hypertension.

Vishesh K. Kapur, MD, MPH, and Edward M. Weaver, MD, MPH, both from the University of Washington in Seattle, add that treatment of OSA “may not only reduce blood pressure (although modestly on average), but if confirmed by future studies also may prevent hypertension in at-risk patients. Thus, OSA deserves attention in patients with or at risk of developing hypertension as a potentially treatable cause of hypertension as well as other clinically important outcomes.”

A Modifiable Risk Factor

In their paper, José M. Marin, MD, from the Hospital Universitario Miguel Servet in Zaragoza, Spain, and colleagues report results of an observational cohort study of 1889 adults without hypertension referred for polysomnography between January 1, 1994, and December 31, 2000. [Read more…]