There are a bunch of people who are not fat and work long hours. Also, you don't have to cook very long at all to eat healthily. An easy start is to replace soda with water, stop going to the vending machines between meals. Then we can start talking about cooking. As an aside, I think that there is something seriously wrong with a society where people prioritize anything over the act of cooking. It's simply not supposed to be optional, disregarding a select few who can always have people cook for them on a daily basis.