sommeil (4) Sleep (4) Human beings (4) Older people (4) association (3) index (3) Social groups (3) Poor (3) Models (3) Polysomnography (3) répertoire (3) temps (durée) (2) risque (2) oxygène (2) santé (2) adulte (2) maladie cardiovasculaire (2) Prevention (2) Drowsiness (2) Ci (Chinese poetry) (2) Time (2) Sleep apnea syndromes (2) Risk (2) Questionnaires (2) Percentage (2) Oxygen (2) Heart (2) Health (2) Exercise (2) Evaluation (2)