Across
- 2. a central nervous system stimulant found in tea and coffee
- 4. _ disease is the leading cause of death in america
- 10. the _ decade is the last 10 years of your life
- 12. minimum number of hours of sleep that a teenager needs
- 14. brain structure responsible for memory
- 16. brain cell death characterized by memory loss
- 18. a hormone that your brain produces in response to darkness.
- 19. exercise that relies on oxygen for primary energy source
Down
- 1. how long we live free from chronic disease or other health problems
- 2. a hormone produced by the adrenal gland
- 3. a unit to measure intensity of light exposure to the human eye
- 5. maximum amount of oxygen that an individual can utilize during intense or maximal exercise
- 6. _ minutes per day is how much exercise a teen should get
- 7. exercise that requires short sudden bursts of energy
- 8. a substance capable of causing cancer
- 9. carry oxygenated blood away from the heart
- 11. carry deoxygenated blood back to the heart
- 13. a neurotransmitter responsible for rewarding behavior
- 15. temporary paralysis of the muscles during rem sleep
- 17. brain neurotransmitter that causes sleepiness