The reason you feel energized after smoking a cigarette is that nicotine stimulates the release of epinephrine from the adrenal glands.

Question

Quizplus · Accepted Answer

Nicotine stimulates the release of epinephrine, also known as adrenaline, from the adrenal glands. This results in an increase in heart rate, blood pressure, and respiration, giving the smoker a sense of energy and alertness. However, this effect is short-lived and can be followed by feelings of fatigue and anxiety, among other negative effects.

The Reason You Feel Energized After Smoking a Cigarette Is