The #1 lifestyle change we can recommended to ANY PERSON is ditching the hot shower for the cold shower. It's especially easy for those with short hair, as you don't need to be under the water for an extended period of time to properly shampoo and condition. It wakes you up like a foghorn, gets your blood pumping, and makes you feel like a million bucket after you step out of the shower. Brett McKay (founder of The Art Of Manliness) definitely agrees, and he made this interesting video detailing all the health benefits of going cold. Fascinating stuff and hopefully some extra motivation for you to make the switch if you haven't already.