Stories by Claudia Wallis

Clear messaging and transparency are vital, say some experts on risk assessment and decision-making

The pandemic has spotlighted ways to make clinical trials easier on patients and better for science, a heart drug researcher says

Studies show that a behavioral treatment works well and that two medications may also be useful

Trusted messengers and repeated reminders can overcome hesitancy, social science shows

Infection with the pandemic-causing virus seems to trigger diabetes in some patients. Here are five plausible explanations as to why

A dangerous lung illness stems from substandard vape liquids

Social science offers valuable lessons about ways to convince those who are hesitant about the shots

People are aging better but not across the board. Education makes a dramatic difference

The rise in depression and anxiety is even worse than expected, especially among young adults

Brain-scan studies hint that the ancient practice may benefit areas associated with memory, emotion and thinking

An ordinary bacterium can trigger changes in some primary tumors that lead to dangerous metastasis

Two new studies link some severe infections to genetics and an autoimmune reaction that attacks the body’s own defenses

Shocking levels of interference at the CDC and HHS threaten public faith in our most reliable public health institutions

The popular fasting diet regimen can work well for weight loss, but many other claims about its benefits remain to be proved

Beyond factors such as age and sex, underlying aspects of biology and society influence disease severity

Suicide rates have been rising for two decades in the U.S. Will the pandemic make things worse?

Some simple, practical steps can raise your resistance to viruses

Public health specialist and physician Camara Phyllis Jones talks about ways that jobs, communities and health care leave Black Americans more exposed and less protected

As drug-resistant superbugs spread, researchers are turning to microbes that kill bacteria

Canada’s recent experience with terminally ill patients is instructive

The risky disorder often follows a different pattern in women that may get overlooked

What it’s like in New Rochelle, N.Y., the site of the state’s biggest coronavirus outbreak

The most common complication of hospitalization for older patients can often be prevented

For some of the most common cardiac conditions, medication is a solid alternative