[spodek]

I did thirty days only cold showers, minimum 5 minutes, in December 2014. I found the experience rewarding so decided to continue, but not every day. I did them every fourth day for a few years and dropped down to every fifth in 2018. My spreadsheet says I've taken 538.

I coordinate them with my cardio days, since I find they go well with being hot and sweaty finishing rowing or running.

You know how lifting (or any exercise) develops more than just what you work -- things like discipline, resilience, grit, self-awareness, etc? Cold showers gives all that benefit but at zero cost in time or money and no risk of injury.

Also look up Joel Runyon's TEDx talk, which inspired me to start.