Quick Answer. In an officially-sanctioned MLB baseball game, there are 9 innings. If the home team is ahead in the top of the ninth and earns 3 outs, the game ends at 8 1/2 innings. If the game is tied after the away team earns 3 outs in the bottom of the ninth, the game goes into extra innings. Keep Learning.
When you exercise, the muscles you use require more energy. When exercise can be sustained, this demand is met primarily by aerobic means. Aerobic energy production in muscles results in increased gas exchange at the lungs, because more oxygen is taken in and more carbon dioxide is released.
When you work out, your muscles move from a resting state to an active one, and they need more oxygen to do their work. Your body accomplishes this by forcing more oxygen-rich blood to flow through your body. During exercise, your breathing rate increases, and you also take in more air with each individual breath.our lungs take in that increased oxygen, which mixes with your blood, and then goes to your heart, a highly effective pump that delivers blood to the rest of your body. Your body produces more heat during exercise as well. An increase in blood flow also allows the skin to dissipate heat more effectively.