I cut back on drinking as my fitness journey accelerated. As a day trader, I was used to taking 4:30 a.m. group boxing classes before I started work at 6:00 a.m. In my late 20s, I started running ultramarathons. I stopped drinking alcohol in 2013, and it was one of the biggest life hacks I ever discovered. I had all this newfound energy, better sleep, better workouts - and no hangovers.