A study in which the researchers were surprised by the results. It happened during research into the hugging hormone oxytocin.
The hormone is known as the cuddle hormone, which promotes love, social bonding and well-being. The new research shows that oxytocin can also cause emotional pain.
In a negative experience, the hormone activates a brain region that strengthens the memory. Oxytocin also enhances the susceptibility to anxiety and tension. The outcome is important for research into chronic social stress.
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