Bryan Johnson breaks down a study of 88,000 adults showing irregular sleep is as harmful as too little sleep, linked to 172 diseases. Going to bed just 60 to 90 minutes later than usual raises liver disease risk by 1.5 times. Consistent bedtime, morning light, and no screens an hour before sleep matter most.
Do you have a consistent bedtime? If not, you want to listen up Researchers tracked the sleep data of over 88,000 adults. Their goal was to assess sleep related disease risks and the habits that drive those risks. What they found is irregular sleep, such as inconsistent bedtimes, late nights and disruptive circadian rhythms were just as bad as insufficient sleep for health and disease risk. Both were linked to the risk of 172 diseases, but nearly half of these diseases were specific clinically tied to irregular sleep. In fact, this study showed that going to bed just 60 to 90 minutes later than usual increased the risk of liver disease by 1.5x. But there's also good news. By prioritizing habits such as keeping a consistent bedtime, getting morning light screens off one hour before bed, and eating your final meal four hours before bed, you can dramatically improve your sleep quality and your circadian rhythm. Both are critical for preventing diseases linked to insufficient and irregular sleep. Friends, sleep is not just recovery, it is disease prevention. Go to bed on time. I believe in you.
