An Inner Smile warms and calms like a relaxing cocktail making us receptive to healthy thoughts. Conversely, a frown can suppress our immune system by increasing stress and stress related hormones. Research in France indicates that facial muscles used to convey emotion trigger specific brain neurotransmitters. Smiling activates the secretion of healing hormones such as healing endorphins and immune boosting T-cells.
Smile therapy has been shown to lower the stress hormones cortisol, adrenalin and noradrenaline. It can produce hormones which stabilize blood pressure, relax muscles, improve respiration, reduce pain, accelerate healing and stabilize the mood. Stress hormones may increase blood pressure, weaken the immune system, increase susceptibility to infections, and exacerbate depression and anxiety.
Though a heart-felt smile has a more profound effect, even a small, gentle smile can trick the brain into releasing healthy hormones. This is because each time we smile we reinforce happy neural pathways that fire more spontaneously with each use. Smiling circuits then release healing chemicals whereas self-sabotaging messages release poisons that breed disease.