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All stressed out?

A new study on mice has found that long-term exposure to stress hormone directly results in anxiety that often comes with depression, thus providing evidence that stress is linked to depression.

The researchers found that when compared with mice given stress hormone, `corticosterone,' for a day, mice given stress hormone for more than two weeks were fearful, less willing to explore a new environment and had dulled reactions to a startling stimulus.

The researchers say the study shows that in people, exposure to stress hormone cortisol can cause anxiety, which appears with depression.

They added that while very-short-term or acute exposure may be adaptive, chronic exposure has detrimental effects on brain and behaviour.

ANI

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