About that, what hours people that wake up at 4.30 am go to bed? If they're so conscious about their well being I'd assume at least 8 hours of sleep, so maybe they go to bed at... 8~9 pm? my question is what do they do to end their day at 9pm? If you work 9-5, you have just 4 hours left after work. Less if you commute, have dinner and a "go to be" routine of maybe 30 min. How about social life after work? Run errands? In my case, if I need to do anything out of my house it has to be after work hours (because almost everything is closed between 6am and 9am when I start work).
So, what's the secret?
Looking through this thread is hilarious. The top comment is a guy claiming that the author must be rich because he plays tennis (what kind of bumpkin says this?) and that’s the true secret to his health. It’s all just excuses. Those who want it go and get it.
There has to be some incredible correlation between having the time and money to play tennis “a few times per week” and being significantly wealthier than the average person. And being wealthy is clearly the healthiest thing you can do.
https://www.usta.com/en/home/play/facility-listing.html