She said that he was a fun gi. This is a pun because fungi is a mushroom and here it is a play on words because of "fun guy" sounding the same as "fun gi". Since they are both mushrooms, the joke stands and these types of puns are very common among people because of their simplicity.
Answer:
When exercising for muscle strength, you should isolate the muscles to be strengthened; carry out the correct motion fully in a smooth and controlled manner without other muscles compensating. People tend to compensate when they are tired, which is when other muscles take over for the fatigued muscles. When you are exercising, be mindful of this tendency and make adjustments in resistance in order to isolate the appropriate muscles. Whenever possible, exercise a joint through its full range of motion so as to work the entire muscle and not to use too much weight or resistance during the end of a motion.
Explanation:
Running increases your heart rate and respirations.
