Some dating experts believe that healthy flirting leads to an increase in white blood cells. This means that people who flirt regularly will have a better immune system.
Healthy flirting activates the pleasure receptors in the brain, which release dopamine and norepinephrine. These chemicals in the brain make us feel good.
There is a direct link between healthy flirting and stimulation of the nervous system. It encourages blood flow and also leads to the release of adrenaline. Increase in adrenaline in turn increases the ability to stay alert, to concentrate, and also makes us more sensitive to touch.
Healthy flirting itself is the act of making someone feel good, boosting their self-esteem and confidence.