There are many factors that contribute to good health, including nutrition, physical activity, and yes, even air conditioning. The health benefits of air conditioning are varied, but the most obvious one is preventing heat-related deaths. In Southern Arizona, it commonly reaches 100 degrees Fahrenheit and above during the summer. Sometimes, the temperature can climb as high as 115 or even hotter. Inside a parked car or a home without AC, the temperature can get high enough to induce life-threatening hyperthermia. In this region, central air conditioning is definitely a must-have, not a luxury.