Day: 16 July 2020

Smiling old woman talking on phone
How many times have you smiled today?  If you’re an average adult, you’ll smile 20 times today.  If you’re a really happy adult, you’ll smile 40-50 times today.  That sounds decent, until you compare it to the number of smiles a child expresses each day:  400! Why do we smile and how does it affect our brain?  Here’s the sequence of events: You feel happyYour brain sends a signal to cranial nerve VII, which then triggers the face’s zygomaticus major