Ask HN: Self-Experimentation During Lockdown

All days look the same for me during lockdown and I am sure some of you can relate. While this is somewhat dull and unsatisfying, it should also provide ideal conditions for some harmless self-experimentation. I'm not necessarily talking about stabbing your eyeballs with a needle like Isaac Newton did, but more about self-optimization like finding optimal sleep or eating schedules.

Has anyone had the same thought? Is the idea valid? Suggestions for experiments?