Smoking tobacco in cigarettes, cigars, or pipes is harmful to health. Tobacco smoke contains nicotine, which can have both stimulant and tranquillising psychoactive effects, and is poisonous in high doses. There are no safe substances in any tobacco products, but there are many toxic substances — from acetone and tar to nicotine and carbon monoxide.

Smoking can lead to a variety of ongoing complications in the body, as well as long-term effects on your body systems. It affects the central nervous system, respiratory system, cardiovascular system, digestive system, sexuality and reproductive system, and also skin, hair, and nails.

Ayurveda considers nicotine addiction to be a mental disorder caused by the decision to rely on external substances rather than complex remedies such as herbs, acupuncture, yoga, exercise, and diet to reduce stress, anxiety, and other problems that people face.