World Topics

Cannabis can relieve pain, but carries risks, study says

Marijuana and cannabis can help to safely alleviate pain for some patients but many uncertainties remain about their health and safety risks, according to a major scientific review published Thursday. A committee of the U.S. National Academies of Sciences, Engineering, and Medicine looked at more than 10,000 scientific abstracts to ...

Jan 20, 2017

Prostate biopsies could be avoidable with MRIs: study

A quarter of men suspected of having prostate cancer could avoid invasive and potentially dangerous biopsies with the help of MRI scans, researchers reported Friday. Magnetic resonance imaging (MRI) could also reduce the number of men over-diagnosed with the disease by 5 percent, they ...

$460 million vaccine initiative launched to 'outsmart' viruses

Jan 20, 2017

$460 million vaccine initiative launched to 'outsmart' viruses

With the world still reeling from outbreaks of deadly Ebola and baby-deforming Zika, governments and charities launched a $460-million (431 million-euro) initiative Thursday to “outsmart” infectious epidemics. The goal is to develop vaccines with which to contain outbreaks before they become global health emergencies, ...

Climate science bedeviled by 'tipping points'

| Jan 19, 2017

Climate science bedeviled by 'tipping points'

Of the many things that keep climate scientists awake at night, tipping points may be the scariest. To start with, these thresholds for deep, sometimes catastrophic change in the complex web of Earth’s natural forces, caused by man-made global warming, are largely invisible. You ...

Golden-headed moth species named for Trump

Jan 18, 2017

Golden-headed moth species named for Trump

A Canadian researcher has discovered a new species of moth native to Southern California and Baja California. The insect, which measures just over a centimeter wide, is visually striking. Golden flakes cover its head, which the researcher likens to the hairdo of U.S. President-elect ...

Jan 15, 2017

Study uncovers long-term effects of deadly Ebola virus

People who survive Ebola may still battle debilitating health problems a year after being declared infection-free, according to an ongoing trial in Guinea that highlighted the need for patient follow-up. Three-quarters of survivors had post-Ebola symptoms when they enrolled for the trial about a ...