I fast for 18 hours daily. I believe that autophagy is improved by exercising while fasted - only makes sense that in a fasted state your body will be burning fat and anything else it can find like useless proteins. So I do interval work each morning before breakfast (I fast from 2pm to 7 or 8 am the next morning). I also do hot baths - 20 minutes daily followed by a quick cooling off (cold showers in winter and sitting under an overhead fan in summer). I have also gone vegan with the exception of a can of sardines every couple of days and take fish oil.
Over the last 1.5 years my body has changed so much it is hard to describe - I feel better now than I did at 50, I am now 75. More alert, chronic back pain is gone - able to run again, dry skin on my face is gone, periodic skin cancer (basil cell) is no longer reoccurring, mood is better, motivation is better... it just goes on and on. I highly recommend listening to Huberman podcasts on health. He is a neuro biologist researcher and professor at Standford that interviews top research scientists. The amazing thing is that all that I am doing now has become easy - no one seems to believe me. Screaming into the void is how I feel when I tell people what is there for them if they change their lifestyles.