With the first official day of summer just around the corner, air conditioning units are turning on all over the country. Deciding when to turn on the cool air is similar to taking down the Christmas lights. Some people are ready for it as soon as the first thaw while others like to stagger the switch. For some it is a point of strength to see how long they can hold out, and for these folks it is a welcome luxury. For many other people however, it is a necessity. Many medical conditions such as migraines, fibromyalgia, allergies, asthma, and hyperhidrosis are eased by air conditioning. HVAC stands for heating, ventilation, and air conditioning. Cooling the home has evolved from window units coupled with strategically-placed fans into highly sophisticated technology of indoor and environmental comfort. HVAC systems provide stabilization of air movement, pressure, and humidity within the home. Fibromyalgia patients and migraine sufferers share an increased sensitivity to weather changes. Indoor air systems decrease exposure to unstable weather patterns which are frequent triggers to aggravated symptoms. The air systems also filter indoor air of dust, soot, and other contaminants. It provides ventilation within the home which is critical to environmental quality. Clean air quality is essential to the comfort of allergy and asthma patients. Indoor pollutants can lead to significant health and well-being issues without proper ventilation. The reliability of cool air flowing indoors regardless of outside conditions is a welcome respite for people suffering from hyperhidrosis. Hyperhidrosis is a sweating disorder in which the amount produced is incongruent with body temperature regulation. Medical professionals are unclear as to what triggers the initial onset of the condition but what makes hyperhidrosis particularly frustrating is that it is reactionary. The human body reacts naturally to stressors by perspiring but then hyperhidrosis kicks in. Suddenly the localized area of the body targeted by the condition is profusely sweating with no end in sight. As with most medical conditions, there are various triggers but to a person suffering from hyperhidrosis, cool air is a must. It is the difference between being presentable for work, or appearing like the person on the receiving end of a water balloon attack. Majority of employees have day-to-day contact with the public, and hyperhidrosis sufferers risk losing their jobs due to failure to maintain a professional appearance without external aids. Unfortunately for these folks, the medication has no guarantees of working until medical researchers find the root cause. These folks rely on the cooler atmosphere provided by the conditioning units to be their ally against an unpredictable condition with unpredictable medication. Whether perceived as a luxury or a necessity, a regulated cool environment is vital to ongoing relief during the summer months. Without the technological advancements of HVAC design, system maintenance, and skilled air conditioning repair, many people’s lives would be negatively impacted due to stagnant air, unstable humidity, inadequate ventilation, and basic lack of relief from the heat. Medical conditions are as wide and varied as faces in a crowd, but it is a relief to know that something as understated as indoor air flow technology is helping someone breathe a little easier.