Question

how many cigarettes per day may cause to death​

Answer 1

Answer:

Cigarette smoking is responsible for more than 480,000 deaths per year in the United States, including more than 41,000 deaths resulting from secondhand smoke exposure. This is about one in five deaths annually, or 1,300 deaths every day.

Answer 2

Answer:

smoking 1–4 cigarettes per day was associated with a significantly higher risk of dying from ischaemic heart disease and from all causes (both sexes), and in women, from lung cancer.