Question

व्हाट हैपेंस व्हेन यू स्माइल अट समवन​

Answer 1

Answer:

The act of smiling activates neural messaging that benefits your health and happiness. ... The feel-good neurotransmitters—dopamine, endorphins and serotonin—are all released when a smile flashes across your face as well (4). This not only relaxes your body, but it can also lower your heart rate and blood pressure.

Explanation:

Hope it's help...XD

Answer 2

it shows the feeling of happiness