Environment

Mosquito-borne viral infections once confined to tropical regions are spreading. Dengue virus infects up to 400 million people worldwide each year according to World Health Organization estimates, and no available treatments exist for this disease. Now, research uncovered surprising strategies for how dengue and hundreds of other viruses replicate in their hosts, with the potential

Over the last century, a once-deadly mosquito-borne virus has evolved so that it no longer sickens humans. New research shows that changes in the virus's ability to target human cells paralleled the decline in illness and death. The findings offer important lessons in virology that may help guide better preparedness for future outbreaks of other

New research finds a tiny freshwater parasite known to cause health problems in humans defends its colonies with a class of soldiers that cannot reproduce. The discovery vaults this species of parasitic flatworm into the ranks of complex animal societies such as ants, bees and termites, which also have distinct classes of workers and soldiers

For patients with Afib, using a wearable device can lead to higher rates of anxiety about their Afib symptoms and treatment, doctor visits, and use of informal healthcare resources, according to a new study. Using a wearable device, such as a smart watch, to track health data and symptoms, is supposed to help people monitor

Ultrafine particles, UFPs, the smallest contributors to air pollution, hinder the function of mitochondria in human olfactory mucosa cells, a new study shows. The study showed that traffic-related UFPs impair mitochondrial functions in primary human olfactory mucosa cells by hampering oxidative phosphorylation and redox balance. Ultrafine particles, UFPs, the smallest contributors to air pollution, hinder

The COVID-19 pandemic significantly widened existing economic and health disparities between wealthy and low-income countries and slowed progress toward health-related Sustainable Development Goals (SDGs), according to a new study. The COVID-19 pandemic significantly widened existing economic and health disparities between wealthy and low-income countries and slowed progress toward health-related Sustainable Development Goals (SDGs), according to

People who speak a language that has multiple words for different shades of colour perceive the shades more quickly. Bees have a phenomenal ability to perceive different shades of colour, and their eyes are able to see ultraviolet light. This helps them find flowers that produce nectar. Human beings are also influenced by colours and

Researchers have successfully made super-heavy element 116 using a beam of titanium-50. That milestone sets the team up to attempt making the heaviest element yet: 120. Scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) are credited in the discovery of 16 of the 118 known elements. Now they've completed the crucial

Tweaking the numbers of receptors in a key brain area changes the daily rhythms of rest and wake in mice. In humans and other animals, signals from a central circadian clock in the brain generate the seasonal and daily rhythms of life. They help the body to prepare for expected changes in the environment and

A new study shows that over half of the medicines stocked in space -- staples such as pain relievers, antibiotics, allergy medicines, and sleep aids -- would expire before astronauts could return to Earth. Medications used by astronauts on the International Space Station might not be good enough for a three-year journey to Mars. A

A new study shows an average 20-percent spike of nitrogen dioxide polluting the air for communities located near huge warehouses. And people of color are harder hit. America's demand for products delivered to the doorstep has led to a dramatic increase in e-commerce and the warehousing industry. A first-of-a-kind study now shows that people living

The insecticide-treated bed nets and insecticide sprays that were so effective in preventing mosquito bites -- and therefore malaria -- are increasingly viewed as the causes of household pest resurgence after pests became resistant to pesticides, according to a new article. For decades, insecticide-treated bed nets and indoor insecticide spraying regimens have been important --