The use of this substance to alleviate the effects of withdrawal is the choice of the users, and is determined by the Nicotine Strength of the selected e liquid.
The electronic cigarette mouthpiece contains a rechargeable cartridge filled with liquid (called e-Liquid). Major containing liquid substances are propylene glycol and / or vegetable glycerin, nicotine at different strength as an option(generally from 0 mg to 24 mg per milliliter) with different flavors.
Because of the relative novelty of the electronic cigarettes technology and the possible relationship to tobacco laws and medical drug policies, legislation and public health investigations are currently pending in many countries. Current electronic cigarettes reviews and regulations vary widely, from regions with no regulations to others banning the electronic cigarettes device entirely.
Tobacco use leads most commonly to diseases affecting the heart and lungs, smoking being a major risk factor for heart attacks, chronic obstructive pulmonary disease (COPD), strokes, emphysema and cancer (particularly lung cancer). Tobacco smoking increases the risk of Crohn's disease as well as the severity of the course of the disease. The smoke from tobacco elicits carcinogenic effects on the tissues of the body that are exposed to the smoke.
Tobacco smoke can combine with other carcinogens present within the environment in order to produce elevated degrees of lung cancer.
Tobacco smoking has also been associated with sarcopenia, the age-related loss of muscle mass and strength.
The World Health Organization estimate that Tobacco caused 5.4 million deaths in 2004 and 100 million deaths over the course of the 20th century. The United States Centers for Disease Control and Prevention describes tobacco use as "the single most important preventable risk to human health in developed countries and an important cause of premature death worldwide"