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Scientists at the Douglas Mental Health University Institute and McGill University find that openness to depression may be linked to noradrenaline (NA), which is an organic chemical in the catecholamine family. It acts like a hormone and neurotransmitter in the human brain and body, according to a recent study.

The study is published in the journal Nature.

With research, it is shown that resilience to some problems can help us understand whether particular issues will lead to depression or not. But researchers are understanding how people tend to come back to normal from certain kinds of problems, according to scienceworldreport.

"We know that a small cerebral structure, known as the ventral tegmental area, contains dopaminergic neurons that play a key role in vulnerability to depression," said study author Bruno Giros, whose team is part of the CIUSSS de l'Ouest-de-l'Île-de-Montréal research network.

The use of animal models showed scientists that increasing dopaminergic neuron activity could be linked with depression. The second type of neuron, noradrenergic neurons, also controls this activity.

"It is this control that steers the body's response toward resilience or towards vulnerability to depression," added Giros. These neurons can be found in the cerebral structure. They use noradrenaline, a neurotransmitter molecule with a role in emotional regulation, sleep and mood disorder, and also maybe depression and resilience.

Animas which cannot release noradrenaline are more open to depression. However, it can be reversed too.