A new analysis of existing studies shows that persistent psychological stress can lead to conditions such as glaucoma, retinal neuropathy, and vision loss.
Head injuries range from mild to severe. Some are treatable at home with ice and rest, while others are life-threatening and require immediate medical treatment. In this article, learn about the types of head injuries, common symptoms, how to recognize a concussion, and when to see a doctor.
The rapid plasma reagin test is a simple blood test that screens for syphilis. Doctors recommend the RPR test when they suspect that a person may have a syphilis infection. Positive results can indicate an infection, but the time course of the infection and other infections can influence the results. Learn more.