After his father died of smoking-related lung cancer, Chinese pharmacist Hon Lik invented the e-cigarette as an alternative to conventional tobacco smoking. Hon Lik was also a smoker who tried unsuccessfully to quit using the nicotine patch. He received a patent for his e-cigarette design in 2003 and the devices hit the Chinese market the nex...

 For decades, conventional wisdom held that stomach ulcers developed as the result of stress and spicy foods. Even Alfred Nobel, the man who established the Nobel Prize, once said, "Worry is the stomach's worst poison." In fact, two scientists who discovered a link between stomach ulcers and bacteria had a trouble convincing the medical commun...

Time seemed to stand still on the football field that night. Football fans and players watched in stunned silence as Buffalo Bill's Damar Hamlin collapsed on the field after colliding with another player during the first quarter. The players and coaches formed a human circle around the fallen athlete as team doctors performed CPR and used an automa...

How the Heart Works If you think heart attack and cardiac arrest are the same thing, you are not alone – 87 percent of people responding to a Cleveland Clinic survey mistakenly believe that cardiac arrest is another term heart attack. You might be surprised to learn that the two heart conditions are quite different. The two conditions have differen...

Prostate cancer is a serious condition that affects millions of men. In fact, except for skin cancer, prostate cancer is the most common type of cancer in men. Doctors diagnose more than 288,000 new cases of prostate cancer annually. Unfortunately, the condition claims about 34,700 lives each year. Like other types of cancer, prostate cancer may ca...

Doctors rely on laboratory testing and medical imaging to diagnose kidney stones. When the patient's symptoms and laboratory tests suggest kidney stones, doctors would turn to medical imaging to determine the number and location of those stones. For many years, computed tomography (CT) scans have been the go-to imaging test when it comes to di...

Every November, healthcare professionals and patients come together to share information about chronic obstructive pulmonary disease (COPD), a group of diseases that make it hard to breathe. During COPD Awareness Month, doctors and others help inform the public about COPD, its symptoms and treatments by holding events, posting on social media, and ...

 Some people with sarcoidosis experience adverse outcomes that cause severe illness and even death, while other people with the condition do not. Determining which patients with sarcoidosis are at higher risk for adverse outcomes can potentially save thousands of lives each year. The results of a new study suggest that MRIs may someday help do...