Health

It’s certainly possible to consume water sourced from the icy rings of Saturn, but doing so safely may require extra steps

After photographs showed President Donald Trump with swollen ankles and bruised hands, the White House revealed he has chronic venous insufficiency—a blood vessel disease that affects circulation in the legs

Long-awaited results of a three-person IVF technique suggest that mitochondrial donation can prevent babies from inheriting diseases caused by mutant mitochondria

A neurologist explains why weather changes from heat waves to thunderstorms might bring on painful headaches

Social inequality and the decay of democratic institutions are linked to accelerated aging, but education seems to slow the process

A person in Arizona recently died of pneumonic plague—a rare and severe form of the disease. An expert explains how the bacteria that spurred the Black Death centuries ago continues to claim lives

Bird flu was nearly everywhere in the U.S.—in chickens, cows, pet cats and even humans. Cases have gone down, but experts warn that it hasn’t disappeared

Influenza viruses like bird flu can mix and match their genomes, and this has played a role in at least three of the last four flu pandemics

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another question

Newly discovered “Gwada-negative” is the rarest of 48 known blood groups

Better assessment of stress and tailored approaches to combat it could give clinicians the tools they need to fend off lasting damage to health

Illnesses from stealthy pathogens known as Vibrio are advancing northward along numerous coasts, potentially ruining your summer vacation