ANATOMY

Detailed explanation-1: -Risorius, which is located on each side of your mouth and aids in smiling. Zygomaticus major and minor, which allow you to smile.

Detailed explanation-2: -The Muscle Used in Smiling-Zygomaticus Major. Known as the Smiling Muscle, the zygomaticus major is most responsible for our smile. It works in conjunction with up to 43 other facial muscles to provide a wide array of smiles.

Detailed explanation-3: -These muscles form the structure and carry out the functions of the cheeks and lips. The main action of zygomaticus major is to pull the angle of the mouth superolaterally. In coordination with other buccolabial muscles, it facilitates speech and creates facial expressions.

Detailed explanation-4: -Begin by pulling the corners of your mouth up toward your ears in the position of an extreme smile and then slowly release the smile. Repeat the exercise 20 times. If you find it difficult to smile, put your index fingers on the corners of your mouth to help draw the corners of your mouth upward and back.