Planning a first-time trip to the Phoenix area and would like advice about the best time to visit with regard to the weather. I want to enjoy sitting by the pool, swimming, etc, as well as do some hiking and typical tourist things. However, I would prefer to avoid the extreme heat. Hide.
Medical Definition of aerobics. 1  1singular or plural in construction : a system of physical conditioning involving exercises (as running, walking, swimming, or calisthenics) strenuously performed so as to cause marked temporary increase in respiration and heart rate. 2  2: aerobic exercises.
Aerobic exercise improves the volume of oxygen your body can take in and use to fuel aerobic functions of your body. Activities include aerobic metabolism and cardiovascular exercise. Aerobic literally means with air, and the most biologically important to survive is oxygen. Therefore aerobic means with oxygen.