A 2011 study in the American Journal of Medical Genetics found that self-reported happiness among those with Down syndrome was at a staggering 99 percent. The same survey found 79% of parents felt their outlook on life was more positive because of their son/daughter with Down syndrome. In positive psychology research, gratitude is strongly and consistently associated with greater happiness. Gratitude helps people feel more positive emotions, relish good experiences, improve their health, deal with…