Huberman and Walker cover some of this in the linked materials, but “The Mind After Midnight: Nocturnal Wakefulness, Behavioral Dysregulation, and Psychopathology” [0] is a pretty interesting review of the literature on this.
In short, we’re becoming increasingly aware of the impact of light throughout the day on the body’s circadian rhythm. Bottom line: natural selection didn’t design to be up throughout the night.
As for the benefits I’ve personally noticed:
- I’m significantly clearer in the head throughout the day and feel more able to make better choices during the day (about food, time spent, etc)
- My mental/emotional state has improved, and I have more capacity to deal with challenging emotions
- Increasingly (this has been shifting steadily) I start each day ready to tackle the hard stuff and I don’t have to use as much willpower
- This is the other side of the “mental/emotional” item but I generally feel happier, or have more capacity to experience happy feelings
- There is also a body of research about getting morning sunlight in your eyes, and I’ve found that on days that I do, I sleep much better. Sleep tracking confirms this. Having a science-backed reason to witness/enjoy the sunrise is nice on mornings when my body just wants to stay in bed.
More generally, such a question is starting to look like similar to questions about a healthy/balanced diet: some of the benefits can be experienced now, but prevention of long term issues is just as important. The links between lack of healthy sleep and degenerative brain issues later in life (dementia, Alzheimer’s, etc) seem to be getting stronger based on recent research.
- [0] https://www.frontiersin.org/articles/10.3389/fnetp.2021.8303...