Your body working with you

"...body parts inside and out to influence and regulate the most intimate operations of emotional and social life. The stomach’s gastric activity , for example, corresponds to how intensely people experience feelings such as happiness and disgust.

In particular, heart rate variability (HRV), variation in the heart’s beat-to-beat interval, plays a key role in social behaviors ranging from decision-making, regulating one’s emotions, coping with stress, and even academic engagement. Decreased HRV appears to be related to depression and autism...."

So your heart has a lot to do with depression. I wonder if people with heart defects are more prone to depression? Perhaps people with depression have more ulcers instead of the other way around? Perhaps, again it comes back to the way you were made. Maybe there are more genes that have to do with depression and bipolar than just the genes that effect dopamine. There are so many things to study! I bet in our lifetime they still won't be able to pinpoint it all. But thank God there are some meds now that can help.