Bryan Johnson· Author
using theta waves for improved sleep at HRV it's all I'll play this for you just something you can find on YouTube this is what it sounds like can you get that okay the first time that I listen to this we we found some evidence this might be interesting and so I turned it on it was like 5 30 in the evening I turned on the speaker so it was broadcasting there's a few of us here hanging out I didn't think anything of it and I was on the couch talking to my mom and I got so tired I just became paralyzed like I needed to lay down I was like Mom I'm so sorry I need to stop this conversation right now because I need to lay down it just had this immediate and dramatic effect on how tired I was and it increased my sleep quality and my HRV for 10 solid days