Recent studies show that when you look ‘good’ you feel happier
It is suggested that the muscle relaxation of the upper half of the face (frown and forehead) after botulinum toxin A may lead to more positive facial expressions resulting in a happier person. Botulinum toxin A treatments in the deep upper half of the face could induce more positive emotional states by reducing frowning and removing other negative facial expressions such as anger, fear and sadness.
On the other hand, botulinum toxin A can dampen positive expression such as smile, activities around the orbicular muscles. In the end, more negative facial expressions will be inhibited than positive facial expressions. The result is that a more positive aura is given and that leads to more positive emotions. A good appearance indeed leads to a good feeling.
1:Alam M, Barrett KC, Hodapp RM, Arndt KA. Botulinum toxin and the facial feedback hypothesis: can looking better make you feel happier? J Am Acad Dermatol. 2008 Jun;58(6):1061-72.
2:Imadojemu S et al. Influence of surgical and minimally invasive facial cosmetic procedures on psychosocial outcomes: A systematic review. JAMA Dermatol 2013 Nov; 149:1325