Re:Bruce McEwen, who found stress can alter the brain, has died
by rzzzt on Wednesday February 12, 2020 @02:30AM
(#22306703)
The "positive" kind has another name, eustress, for better distinction: https://en.wikipedia.org/wiki/Eustress
Then you can have other stresses coming from life events, work, kids, travel, partner,... issues.
If you monitor your stress with Heart Rate Variability, you can see them all having a bad effect.
It could be interesting to check if the red light could help recover faster.