Challenge

3. The hormone that helps regulate sleep-wake cycles and can be affected by exercise
5. An exercise that works the pectoral muscles
8. The building blocks of muscles
9. A type of nutrient that is found in fruits, vegetables, and whole grains
11. A nutrient that helps with the absorption of calcium
12. A type of nutrient that is essential for building and repairing tissues
14. Chico has this Mansion

1. A strength training exercise primarily targeting muscles of the lower body
2. The concept of gradually increasing the difficulty of an exercise over time
4. The process by which the body converts food into energy
6. A group of nutrients that are important for energy production and nervous system function
7. A popular exercise machine that works the legs
10. A training protocol alternating short periods of intense or explosive anaerobic exercise with brief recovery periods
13. Serena and LeBron are interested in this