do cigarettes really have 7000 chemicals you know what's in a cigarette? Cigarette smoke contains over 7,000 chemicals—69 are known to cause cancer Many of these also are found in consumer products, but these products Chemicals in Tobacco Products and
Description
But what is the link

Dimensions: 2320 x 3500 px | 19.6 x 29.6 cm | 7.7 x 11.7 inches | 300dpi Photographer: WireStock
Dietary fat, dyspepsia, diarrhoea, and diabetes
that, except as provided in paragraph (j)(18)(iv) of this section, are the subject of a claim for an exemption that provides the information required under paragraph (j)(18)(iv) of this section, that is filed before the beginning of the time period for which the exemption is claimed, and that is filed by a person, whether it is the manufacturer, packer, or distributor, that qualifies to claim the exemption under the requirements for average full-time equivalent employees in paragraphs (j)(18)(i) or (j)(18)(ii) of this section
E-cigarette users commonly reported symptoms including burning [117], poor taste [118], dryness [118], irritation [119], [120], [121], bad breath [122] and pain [123]

Smoking is an addiction on two fronts: Nicotine causes a chemical addiction, and smoking cigarettes is a behavior addiction
