Scientists decode why love makes us nervous and unstable
A side effect of rising dopamine levels is a reduction in another chemical, serotonin, a key hormone in our moods and appetite.
Serotonin levels may fall in a similar way to those seen in people with obsessive-compulsive disorder, explaining why love can make us feel anxious and jittery.
According to researchers, the love chemical we are most familiar with is adrenaline. This hormone is behind why our heart races, palms sweat and mouth goes dry when we see the person we like.
The same hormone is also released when we are frightened. This means that two people only vaguely attracted to one another can fall madly in love if they go through an exciting or scary experience together.
Researchers said it may also explain the lure of forbidden love.
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