Sleep 7 hours tonight.

Sleep 7 hours tonight. The lie I taught in medical school: sleeping 5–6 hours is fine if you feel okay the next day. That's the myth. Cappuccio et al. pooled prospective cohorts on sleep duration and all-cause mortality (Sleep 2010;33(5):585-592). Short sleep: RR 1.12 (95% CI 1.06–1.18). Long sleep: RR 1.30 (95% CI 1.22–1.38). ~1.38 million people; 112,566 deaths. Study: https://pubmed.ncbi.nlm.nih.gov/20469800/ Honest caveat: observational meta-analysis — not an RCT proving more sleep alone saves lives. Definitions of short/long sleep varied. Self-report can misclassify. Long sleep may partly reflect illness. Individual needs differ. Today's drop: Protect a 7–8 hour sleep window tonight. Consistent bedtime. Dim evening screens. Don't assume chronic 5–6 hours is enough because you "feel fine." Related: Sleep Isn't For Muscle Repair — Here's What It's Actually For https://www.youtube.com/watch?v=x7h8dOxFQYE This episode is also available as audio only. Search Doctor's Daily Drop on Apple Podcasts, Spotify, and other channels. #DoctorsDailyDrop #Sleep #Longevity #RobertLufkinMD