1.   Do you ever think about what those cigarettes must be doing to your lungs?

2.   But it does not work as a regular cigarette does.

3.   Cigarettes do.

4.   Smoking marijuana and cocaine may cause lung cancer the same way that smoking cigarettes does.

5.   The cigarette also does well on laboratory tests that show whether it causes the cellular changes that could lead to cancer.

6.   They say that after years of study and soul-searching, they now conclude that cigarettes do in some cases cause lung cancer and heart attacks.

7.   Actually, a weak economy tends to be an opportunity for certain sectors, for example, beer and cigarettes usually do very well.

8.   The study, published in the British Medical Journal, also shows that smoking low or medium tar cigarettes did little to diminish the risk of a heart attack.