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 - The type of respiration in which the animals inspire (breathe in) oxygen and expire (breathe out) carbon di oxide to produce energy. Example - We, human beings. An-aerobic - The type of respiration in which the energy is produced in the absence of oxygen. C6H12O6 \to 2C3H6O3 + 2 ATP.