研究結困支持達爾文嘅理論 結果顯示面部回饋 改變腦部內神經 處理情緒嘅內容 所以我哋笑嗰陣會令我哋感到愉快
Research supports Darwin's theory, showing that facial feedback alters the content of emotions processed by the nerves in the brain, so laughter makes us feel happy