The most common of the psychoactive substances, used by 90% of Americans, is
A)nicotine.
B)caffeine.
C)marijuana.
D)opium.

Question

Quizplus · Accepted Answer

Caffeine is found in many beverages and foods, including coffee, tea, soda, and chocolate. It is a stimulant that can enhance mood, alertness, and concentration. While it is legal and generally considered safe in moderate doses, excessive consumption can lead to negative side effects such as anxiety, insomnia, and increased heart rate.

The Most Common of the Psychoactive Substances, Used by 90