There was a study out a while back that showed that if you were fat and smoked that you were better off losing weight before you quit smoking. The reason was because the study showed being overweight was worse for you than smoking.
Dailymail.co.uk reported on a study that confirmed just that. Going to work and sitting at a desk all day can be more dangerous than smoking.
The Dailymail reports the research was conducted by the American College of Cardiology. The study concluded that "prolonged sitting is linked to cardiac disease, obesity, diabetes, cancer and even death and could be just as dangerous, if not more so, than smoking."
It makes sense because diabetes, cancer cardiac disease and death are all secondary to obesity. Other people can get those conditions, yet your risk is greatly increased if you are overweight. A study doesn't really need to be done to prove that. Yet it helps.
The researchers believe that the more you sit around the less your body does to fight off those diseases. It's just like smoking increases your risk by inhaling chemicals.
Another similar study showed that watching too much TV was linked with increased risk for heart disease and diabetes. I really don't think we need to do a study to show these things. It's common sense.
Second hand smoke has been proven to be almost as dangerous as first hand smoke. So it probably won't be long before second hand sitting is proven to be as dangerous as first hand sitting.