Why does America have a higher percentage of obesity than the rest of the world? Any solutions?

I think it is because we have a lot of fast food chains in America. Fast food chains are based on population, and America has a big population. In other countries, there are less food chains. At those food chains, the food is more expensive as well. So people are less likely to buy food from a fast food restaurant. In America, we can get a double cheeseburger for a little over a dollar. 
Also, people are getting lazier. There are less things to do because of technology. People are spending more time with their technology rather than going outside or being active, even at school.

I think the solution is to get ride of fast food restaurants or at least increase the prices, because then we will be less likely to buy from the restaurants. Also we need to have more recesses at school, this way, we can be active and spend more time outside and off of the computers.