AP PSYCHOLOGY

Detailed explanation-1: -Caffeine is a naturally occurring central nervous system (CNS) stimulant of the methylxanthine class and is the most widely taken psychoactive stimulant globally.

Detailed explanation-2: -Caffeine is said to stimulate the heart muscle. During caffeine abstinence, some people have reported experiencing changes in their heart rhythm, resulting in low blood pressure and palpitations.

Detailed explanation-3: -Caffeine narrows the blood vessels in your brain. Without it, your blood vessels widen. The resulting boost in blood flow could trigger a headache or result in other symptoms of withdrawal.

Detailed explanation-4: -While consuming caffeine can cause feelings of anxiousness, cutting it out can cause this side effect as well. Anxiety is a commonly reported symptom in people who withdraw from regular caffeine consumption ( 3 ). The body can become mentally and physiologically dependent on it, causing feelings of anxiety.