The daily toll of COVID-19, as measured by new cases and the growing number of deaths, overlooks a shadowy set of casualties: the rising risk of mental health problems among health care professionals working on the frontlines of the pandemic.

The first step in treating cancer is understanding how it starts, grows and spreads throughout the body.

For those trying to live a healthy lifestyle, the choice between sugar and artificial sweeteners can be confusing.

When we experience a new event, our brain records a memory of not only what happened, but also the context, including the time and location of the event.

An unfortunate truth about the use of mechanical ventilation to save the lives of patients in respiratory distress is that the pressure used to inflate the lungs is likely to cause further lung damage.

In a time when every trip out of the house and every person we come in contact with poses a threat of contracting COVID-19, it can be difficult to weigh the risks and benefits of venturing out. 

Flooding has caused hundreds of billions of dollars in damage in the U.S. over the past three decades.

New analyses reveal how over 60 years a critical marine species has responded to ocean acidification

Tales of post-apocalyptic landscapes in which few survivors emerge into a new and much different world have long been popular tales woven by screenwriters and authors. 

Medications to treat high blood pressure did not affect outcomes among patients hospitalized with COVID-19, found an international team led by researchers in the Perelman School of Medicine at the University of Pennsylvania.