An MRI study has led to the discovery of a relationship between a detached brain circuit and depression.
Doctors from the University of Warwick's Department of Computer Science used the machines to look at the brain activity of a group of depression patients and then compared it to the neural activity in a control group.
The results revealed that 92 per cent of the depressed subjects had uncoupled hate circuits, the brain pathway that becomes active when people experience hatred.
Professor Jianfeng Feng said the results were perplexing but hypothesised that the uncoupling could lead to an increased risk of self-loathing and withdrawal as people struggle to deal with the feeling of hate.
The Depression Alliance states that if people experience any of the symptoms of depression – which can include a loss of self-esteem, appetite, or sex drive, as well as persistent sadness or tiredness - for more than two weeks then they should seek medical counsel.