SO.
I think I just added another layer of biometric data to follow for my emotions-tracker project. That is, if it has any bearing - though I might be able to test that, too!
Pulse Oximetry.
There's actually literature on the plausibility of a pulse oximetry ring (They made one!) that can be worn from day to day. SO! I can make one and use that as another datapoint.
This project is getting more ambitious as time goes on, but I AM LOVING IT.
If it sounds like I'm a Psych student who switched majors, it's because I am.