100% true. Unhealthy food has fat calories which cause weight gain. If the diet is a healthy one with no fat calories, you will not gain fat. Exercise is also key as it burns calories and reduces chances of various diseases that come with being overweight.
The best way is to just relax and try to act naturally. Just be calm and try to make it a bit funny to hide fear. :)
A strain is an injury to a muscle in which the muscle fibers tear as a result of overstretching.
Answer:
C :as intensity increases, time should decrease
