dimples, also known as dimples or laughter. Most of them appear on the cheeks or around the corners of the mouth. Buccal dimples are regarded by oriental women as an ornament of beauty and by westerners as a symbol of female charm. It has been researched that the description and praise of dimples in China ancient literature was first seen in the sentence "Smile with a smile and look forward to it with beautiful eyes" in The Book of Songs, in which the word "Qian" refers to dimples appearing on both cheeks when smiling. Before, I only knew that the word "Qian" meant "beauty". As for the word "dimple", it was my first time to gain knowledge. However, in medicine, it is believed that dimples are a defect of the human body, a defect left by the uneven closure of some three muscles of the face, or a concave hole. Therefore, taking dimples as beauty should be regarded as a veritable "flaw beauty."

dimples are formed by muscle activity under the skin. Most muscles of human body are firmly attached to bones by tendon fibers, such as pectoral muscles and lower limb muscles. The facial expression muscle is an exception. It is directly attached to the facial skin. When the expression muscle contracts, it affects the facial skin, so various wrinkles appear on the face, producing expressions of joy, anger, sadness and joy. The two dimples on the smiling face are formed by the relative influence of facial skin and facial expression muscles such as hamstring and laughing muscles.

not everyone will get dimples when they laugh. Whether you can have dimples is related to the development of expression muscles. People with less plump smiling muscles and less subcutaneous fat on their faces generally don't have dimples when they smile.