Across
- 3. deprivation pattern of not getting sufficient amount of sleep
- 4. sleep fifth stage of sleep in which brain regions used for learning are stimulated
- 5. dead skin that flakes off the scalp due to dryness, infrequent shampooing, or irritation
- 7. a skin condition in which inflamed, clogged hair follicles cause pimples
- 10. a product that protects the skin by absorbing and scattering UV rays
- 11. small insects that attach to hair and feed on human blood
- 12. an inflammation of the gums
Down
- 1. a sticky, colorless substance formed by bacteria in the mouth; coats the teeth and slowly dissolves enamel
- 2. hormone that increases feelings of relaxation and sleepiness and signals it is time to sleep; released by the pineal gland
- 6. holes in the teeth caused by plaque eating away at tooth enamel
- 8. rhythms naturally occurring physical, behavioral, and mental changes in the body; typically follow the 24-hour cycle of the sun
- 9. light type of light that produces large amounts of energy; emitted from many digital devices, such as televisions, phones, tablets, and computers