They speed up your heart rate and get your body loosened up for further exercises
<span>True, because many people are competitive by nature, so they need the challenge of a good competition in order to feel motivated to do the physical activity. If there is no competition, they don't feel compelled to engage in any physical activity. That's why those people tend to choose team sports or other activities in which they have to compete against other participants.</span>
Answer:
Glucose.
Explanation:
Because it referred to a blood sugar.
