main symptoms of a bad dream:
1. sleepwalking
2. grinding teeth
3. snoring



sleep apnea can cause:
1. irregular heartbeats
2. high blood pressure
3. a general lack of energy



phrases:
be afraid of
suffer from



disease
dis- means "not" in the word
ease means "comfortable" in the word
uncomfortable



dis- means not, opposite of
Ex: disjointed



con- means together or with
Ex: concentrate



re- means down, back, again, passive
Ex: renowned



il- means no good, not enough
Ex: illogical



vit- means life
Ex: vitamin