Other forms: stimulants
A stimulant is a substance that makes the body or mind more active. A mild stimulant.
Caffeine is the one nearly everybody uses and the only one most people never think about. Every stimulant borrows energy rather than creating it, which is why the crash follows.
1nounstimulantA substance that makes the body or mind more active.
“The only stimulant in the house was tea.”
stimulant is a substance.