Oh I was just borrowing your words for "longevity framework" aha. I've taken a look at your website, and it seems like you have a much more well-defined "framework" than I do, given your commitment to a healthy diet, regular physical exercise, etc. In fact, I wouldn't say I have a longevity framework at all. It's an interesting concept though, and I feel like I certainly could learn from you by establishing a more formal set of health-guidelines for myself, so thanks for the idea!

I was first exposed to the idea of cold showers for better health in Veritasium's "How to Slow Aging (and even reverse it)" https://www.youtube.com/watch?v=QRt7LjqJ45k. The video isn't focused on cold showers exclusively, but he briefly touches upon it as a method of improving longevity. I figured that implementing cold showers into my daily routine should be a pretty easy task, because it doesn't add any extra work into my schedule--it's just replacing a small portion of my hot showers, which I should be minimizing anyway.

And yeah, you're probably right about cold showers being less of a good idea in the evening. How often do you shower then? I can't bring myself to go to bed at night without feeling clean, but showering twice in a day also feels a bit time-consuming and excessive.

I usually shower twice a day (morning and post workout) but the morning shower is only water cause I’m already clean. I plan to eventually ditch the hot water in the morning altogether.

Actually there is no need to do it every day as long as you stay under the cold for more than 11 minutes per week. For me, doing it every day seemed easier to ramp up. Once I get to 3-4 minutes under the cold water per shower I’ll think about doing it maybe 3 times per week.