Fact 1: Exercise has a positive impact on a human 's health.

Fact 2: An exercise is a movement designed to work a specific muscle or muscles.

Given the two facts above, answer the question "What does movement designed to work a specific muscle or muscles do?" with the following options: 
- Positive impact on health.
 - It helps them survive
 - Muscle atrophy.
 - Graphic design.
 - To keep their body heat.
 - preventing heat transfer
 - Interpretive movement.
 - heat is produced


 

 Positive impact on health.        