A new study conducted by the researchers from Concordia University has claimed that people who suffer from depression are more likely to develop heart diseases than people who are not depressed. The former group suffers from almost double chances of heart diseases than normal people. The researchers have mentioned that people who suffer from mental stress or depression receive less time to recover after exercise than people who do not suffer from stress.

According to the findings depression is caused by dysfunctional biological stress system. According to the lead author of the study Jennifer Gordon scientists are divided into two groups regarding the link between depression and cardiovascular diseases. One of the groups believes that people who suffer from constant depression develop many health related problems which in turn push them to cardiovascular diseases. On the other hand the second group of researchers thinks that the problem is directly related to physiology. If speaking specifically the problem is related to fight or flight response that is a serious stress system.

According to the researchers the recent study for the first time concentrated on the fight or flight response in depression among a large section of people. They selected 886 people of 60 years of age on average for the study. 5 per cent of the part participants were found to have mood disorder. All the participants were assigned to go through a stress test. Researchers noted down their heart rate and bold pressure. Then the matched the heart rate and blood pressure rates of depressed participants to that of the non-depressed participants.

After the study the researchers found that heart rates of the depressed participants to be normal took longer than the heart rates of non-depressed people, mentioned Simon Bacon who is a professor of the Concordia University Department of Exercise Science and also a researcher at the Montreal Heart Institute.

The study was appeared in the journal titled Psychophysiology.