Slow Wave Sleep % Loss Is Associated With An Increased Dementia Risk

[Mike Lustgarten]

 

[Saul]

Interesting

  --  Saul

[drewab]

Thanks for sharing this Michael. It is fascinating (and scary) to see how SWS declines during aging.  SWS loss being associated with dementia should certainly make people raise an eyebrow. Your most recent data of SWS being nearly 25% is impressive and is quite youthful - kuddos to you for being able to increase it so much over the past 5 years! It is interesting to see how your data shows that a lower bodyweight is linearly associated with an increase of SWS. I wouldn't have necessarily expected that since a lot of CR practitioners report difficulties with sleep, myself included. 

While many of my biomarkers of health are youthful, my sleep data doesn't reflect this. It is shown below (I wish I could figure out a neater way of exporting my Oura data). Sadly, my data is not headed in the right direction. 

	2021	2022	2023
Bed Time	9:59 PM	9:54 PM	10:03 PM
Deep Sleep (SWS) Min	57 min	56 min	42 min
Deep Sleep (SWS) %	13%	13%	11%
Latency	5 min	5 min	6 min
REM Sleep	2 hr 7 min	2 hr 15 min	2 hr 10 min
REM %	30%	32%	33%
Sleep Score	81	79	76
Sleep Efficiency	90%	91%	89%
Time in Bed	7 hr 50 min	7 hr 39 min	7 hr 28 min
Total Sleep	7 hr 4 min	6 hr 56 min	6 hr 38 min
Wakeup Time	5:37 AM	5:29 AM	5:25 AM