Patients need to realize that they would still benefit greatly from regular physical activity.

Human bodies are designed for regular physical activity. The sedentary nature of much of modern life probably plays a significant role in the epidemic incidence of depression today. Many studies show that depressed patients who stick to a regimen of aerobic exercise improve as much as those treated with medication.

I don't care for physical activity. I'm not sporty. I'm not very coordinated.

I get bursts of creativity with bursts of physical activity.

In principle, we could be testing people, but it is premature to do that at the moment. There were no differences in temperament and background between the two groups. And even people who have emotional triggers experience emotions a lot more than they have heart attacks.

Until now, there have been two sorts of studies, one of whether triggers do exist, the other looking at the biology of patients. This is the first study to combine the two things.