Medical radiation: Too much of a good thing?

Medical imaging techniques such as CTs, nuclear scans, and x-rays have saved countless lives which may explain why the average lifetime dose of diagnostic radiation has increased sevenfold since 1980. Exposure to diagnostic radiation can have unintended consequences and side effects with the potential for both misdiagnosis and over-diagnosis, which often lead to excessive or unnecessary treatment. Ionizing radiation exposure through medical testing is generally safe, but there are risks that patients and caregivers need to be aware of. (Locked) More »

Social networks and health: Communicable but not infectious

Face-to-face social interactions can be beneficial, but research suggests that they have a ripple effect that extends far beyond household and family units. Some of these effects can promote health; others are detrimental. Doctors must learn to harness this networking tool to improve public health by spreading healthful habits, positive attitudes, and wise lifestyle choices. More »

Acetaminophen and prostate cancer

I was very interested in your article on aspirin and cancer. You commented that aspirin may help prevent cancer, but I can't take aspirin, even in low doses. I use Tylenol for pain and fever - can it also help against cancer? (Locked) More »