Everything thats connected to become better looking getting more and more popular right now. Look at all the money Plastic Surgeons, Cosmetic dentists, Hair stylists, Personal trainers makes a year. Look at all the life coaches.
All those people earning lots of money and getting very rich.
A personal trainer can easly charge 70$ a hour, so if you work 5 times a week and each day you train 5 people its 1750$ a week based on 70$ a hour (nearly 8,000$ a month). Not bad.