Caffeine can cause
Options:
- (A) congestion
- (B) anemia
- (C) constipation
- (D) sweating
- (E) hives
- (F) energy usage
- (G) dehydration
- (H) heat energy OK. Let's think hard:
Caffeine is a central nervous system stimulant. Stimulants can cause overheating and dehydration. Caffeine can cause dehydration.
So, the final answer is (G).