Lung cancer is the third most common cancer in the United States. Each year, about 225,000 people in the country are diagnosed. Doctors classify lung cancer into types depending on the way cancer ...

The images in a meme are authentic photographs of tears under a special type of microscope. It is also true that there are three types of tears, each of which is produced through a different ...

Sex and gender exist on spectrums. This article will use the terms “male,” “female,” or both to refer to sex assigned at birth. Learn more. Though cancer can start in any area of the body, the ...