Pretty straitforward question... but there are all kinds of "causes" that people talk about. I always hear about how genetics are the reason that people can't lose weight... IMO they can make it hard but not impossible, with the right diet and exercise. If genetics REALLY were the problem, there would have been as many fat people 100-200 yrs ago as there are today... the human race doesn't evolve that quickly. What do you guys think? What is the cause of obesity? Do you think that genetics are an ultimatum or just an excuse?