Caffeine can cause 
congestion anemia constipation sweating hives energy usage dehydration heat energy
A B C D E F G H
Stimulants can cause overheating and dehydration.
Caffeine can cause dehydration.
Caffeine can cause  (A) congestion (B) anemia (C) constipation (D) sweating (E) hives (F) energy usage (G) dehydration (H) heat energy