system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does obesity cause so many health problems?

It seems that almost every diseases have obesity associated with a risk factor with it. I saw that as you get more obese you develop more female hormones that in mass can cause imbalances, but I don't understand why your body does this.
gpt
There's a lot of health problems that come from being obese.   


First, when you get very large, your heart has to work harder to pump enough blood to cover your entire body, but the muscles in your heart aren't like the muscles in your arms and legs that get stronger with effort. Your heart gets put under more and more strain the larger you get.   


Next, when you get a lot of fat in your body, some of that fat ends up sticking to your veins and arteries, making it harder for blood to flow. Some of that fat can also sometimes block the flow of blood, which causes a heart attack or stroke.   


The joints in your knees aren't strong enough to handle the extra weight, and can make it painful to walk.   


There are other problems that come from being obese as well. It's not very healthy.