Answer the following question given this paragraph: 

Sometimes muscles and tendons get injured when a person starts doing an activity before they have warmed up properly. A warm up is a slow increase in the intensity of a physical activity that prepares muscles for an activity. Warming up increases the blood flow to the muscles and increases the heart rate. Warmed-up muscles and tendons are less likely to get injured. For example, before running or playing soccer, a person might jog slowly to warm muscles and increase their heart rate. Even elite athletes need to warm up ( Figure below ).


Q: Warming up your body before a workout does what to the blood flow?

 Choices:

- reduces it

- stops it

- minimizes it

- increases it

A:
increases it
