Write a letter to your friend about the bad effect of smoking.
My dear Karim,
At first you take my love. I hope you are well. I am also well. However, I am very sorry to learn that you have been addicted to smoking. You have become a chain smoker. You know smoking is a bad habit. It does a lot of harm. It makes you lose two things at a time. You lose money and health. You will be astonished that one puff of cigarette smoke contains fifteen billion particles of injurious matter. It causes many fatal diseases. Such as cancer, heart attack, bronchitis. It also harms the nerves, damage the brain. Excessive smoking may lead a person to pre-mature death. Smoking is like taking poison. So, I would like to suggest you to give up smoking just now. I shall be highly glad if you give up this bad habit without delay.
No more today. More when we shall meet. Convey my best regards to your parents and love for the youngers.
Your loving friend