Want climate news in your inbox? Sign up here for Climate Fwd:, our email newsletter. Crop yields are declining. Tropical diseases like dengue fever are showing up in unfamiliar places, including in the United States. Tens of millions of people are exposed to extreme heat. These are the stark findings of a wide-ranging scientific report…
Multiple sclerosis and lupus both involve the immune system, and they may cause similar symptoms at times. However, they are separate conditions with distinct characteristics. Symptoms of multiple sclerosis (MS) appear because the body attacks nerve cells in the brain and spinal cord. This damage interferes with the way the body communicates with the brain.…
HIV can affect anyone, and some symptoms may be different in women. In late 2014, the Centers for Disease Control and Prevention (CDC) estimates, more than 250,000 women in the United States were living with HIV. Below, we describe HIV symptoms in women, how doctors diagnose the condition and what treatment options are available. Image…
More fat? More carbs? What kind? How much? When? Questions about what constitutes an ideal and practical diet for competitive athletes consume and confuse many athletes, as well as their coaches and families. But a new, comprehensive review about the science of sports nutrition published recently in Science provides a lucid overview of what currently…
Image Many YouTube videos about prostate cancer are unreliable sources of information. Researchers searched YouTube for “prostate cancer screening” and “prostate cancer treatment.” Then they scored the first 75 hits for each phrase, using validated scales to assess such measures as whether the video favored new technology, recommended unproven treatments, accurately described risks and benefits…
When I first met my patient, three years earlier, a woman in her mid-70s from Western Pennsylvania, she had just been given a diagnosis of myelofibrosis. This disease is classified as a myeloproliferative neoplasm, in which a genetic abnormality revs up the inner machinery of cells in the bone marrow (“myeloid” cells), causing them to…
A recent study investigates why some parts of the human body remain hairless while others become hirsute. The findings may offer clues to male- and female-pattern baldness. A recent study approaches hair loss from a new direction. Humans have hair in some places but not in others. The tops of our heads are generally replete…
Metastatic breast cancer occurs when the cancer spreads from the breast to another part of the body. Symptoms and treatment for this stage of breast cancer are different to those of the earlier stages. Doctors may also refer to metastatic breast cancer as advanced breast cancer or stage 4 breast cancer. Many people live for…
A Chinese scientist who claims to have created the world’s first genetically edited babies said at a conference on Wednesday that his actions were safe and ethical, and he asserted that he was proud of what he had done. But many other scientists seemed highly skeptical, with a conference organizer calling his actions irresponsible. “For…
Normal body temperatures vary depending on many factors, including a person’s age, sex, and activity levels. The normal body temperature for an adult is around 98.6°F (37°C), but every person’s baseline body temperature is slightly different, and may consistently be a little higher or lower. In this article, we discuss the normal ranges of temperature…