Read the text below and answer the following question!

Smokers Can Be Affected by Covid-19

    Millions of people in the world are grouped as active smokers. Research said that people start smoking because of peer pressure, psychological problems, and weight problems. However, they only get away from their problems for a short time. Moreover, it will cause them other serious problems.

    Smoking may cause serious respiratory problems such as bronchitis, mouth cancer or lung cancer. A cigarette is enough to make your breath smell badly and make your teeth yellow. Psychologically, smoking may cause lack of concentration that can affect your social life. Moreover, nicotine in a cigarette is the most additive substance. It is reported that cigarettes kill more people than car accident or criminal actions.

    From the reasons above, we can conclude that smoking is a bad habit that does not give us any advantages. Smoking is one bad habit that we must avoid. Also in this situation Covid-19.

What is the most dangerous of smoking for?