Smiling has been found to trigger the release of endorphins, which are hormones associated with happiness. This physiological change can lead to an overall enhancement in well-being. When you smile genuinely, especially with crinkling eyes, your body undergoes a transformation that boosts your mood and alleviates discomfort.

Interestingly, even a forced smile can initiate positive physiological shifts. Despite initial difficulties in smiling, the act itself can still foster beneficial changes in your mental state. This insight underscores the power of non-verbal communication and its significant impact on our emotions, as discussed in Susan C. Young's book, "The Art of Body Language."