Thinking about having your genome sequenced? This primer explains the different types of tests, what you’ll learn, and what you can do with it.

An interview with Dr. Johan Auwerx about the role of mitochondrial function and protein homeostasis in health, aging, and disease.

The serious science of not eating, according to three prominent scientists studying it, and how it may change the way you think about food.

Biostatistician Steve Horvath can determine chronological age and predict mortality by measuring DNA methylation, a type of epigenetic modification. He explained to us how it works, and what we still don’t know.

Cellular senescence is now thought to be one of the root causes driving disease in old age. We spoke to Dr. James Kirkland, director of the Robert and Arlene Kogod Center on Aging at the Mayo Clinic, about what senescence is, how it contributes to aging, and what can be done about it.

Some animals, like the naked mole rat to the bowhead whale, age better (and slower) than similar species. We spoke with scientists Steven Austad and Vera Gorbunova to find out why — and what it means for humans.