What makes someone a "morning lark" or a "night owl?" Why does jet lag hit us so hard, and why do some people struggle each ...

Scott Peterson remains in prison as 2025 ends, serving life without parole for murdering pregnant wife Laci Peterson over 20 ...

WHO 2025 guidelines strongly recommend CD4 testing to identify advanced HIV disease, guide care, reduce deaths, support ART decisions, and improve outcomes where viral load testing is limited.

Rare case shows a man living virus free for years after stopping treatment, raising new questions about how the immune system ...

For the first time, scientists say new therapies have the power to cure sickle cell disease. The disease is a devastating, ...

Human immunodeficiency virus (HIV) infections are still fairly common and an estimated 40 million people worldwide are ...

The Justice Department early Tuesday released more than 11,000 additional documents and photos from the Jeffrey Epstein files ...

Sickle cell disease is a devastating, inherited blood disorder that affects an estimated eight million people worldwide and ...

From minimalist wrist designs to full sleeves, body art has become so common that it barely raises an eyebrow. But while the ...

Some ants thrive by choosing numbers over strength. Instead of heavily protecting each worker, they invest fewer resources in ...

From "Sinners" to "One Battle After Another" to "One of Them Days," here is a look at CA reporter John Beifuss' favorite ...

Do you have what it takes to live like a genius? Find out some extreme ways to be more creative by disrupting your daily ...