Depression and anxiety. or at least thats what it is for me.
You can overdose or just feel like your on painkillers depending on how much you take also addiction
When a person smokes a cigarette, the body responds immediately to the chemical nicotine in the smoke. Nicotine causes a short-term increase in blood pressure, heart rate, and the flow of blood from the heart. It also causes the arteries to narrow. Carbon monoxide reduces the amount of oxygen the blood can carry.