Probably the most important element to one's health is oxygen. Every day, we breathe approximately 2,500 gallons of air in order to supply our tissues with oxygen. Without it, cells become weakened and die. There are about 75 trillions cells in your body, and they provide you with adenosine triphosphate (ATP), the basic energy for everything that your body does, whether it's breathing,dreaming, eating,or exercising. In order to survive, cells must have oxygen to burn glucose and create ATP for continued growth.
The point is that you don't want to deplete oxygen during exercise. If you want to know whether you've moved beyond aerobic into anaerobic, here's a simple test : when you're exercising, can you talk (aerobic)? Or are you too winded (anaerobic)? Your breathing should be steady and audible, but not labored.
What does it feel like when you're working out?
If you're exercising aerobically, it should be pleasurable though tiring. If you're exercising anaerobically, you definitely feel pushed.
On a scale from 0 to 10, with 0 being minimum exertion and 10 being the most intense, what's your score? If you've exceeded 7, then you've gone beyond aerobic into anaerobic, ideally, you'll evaluate yourself between 6 and 7.
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