What happens during caffeine withdrawal?
Regular consumption of caffeine increases the body’s tolerance to its effects. The more caffeine consumed, the less sensitive one becomes to its effects, creating a need for more caffeine to enjoy the positive aspects. Unfortunately, that sensitivity works in reverse when the body is denied its caffeine fix. Terminating or suddenly reducing the amount of caffeine you normally ingest results in a hypersensitive reaction that increases blood flow to the head and causes a drop in blood pressure. Although a massive headache is the most common symptom of withdrawal, most people also experience one or more of the following: irritability, nervousness, anxiety, jitteriness, fatigue, drowsiness, and depression. Extreme cases may produce nausea and/or vomiting.
