A long-disputed rule in biology says bigger is better, but a new computer model illuminates why that’s not necessarily true. By Lauren Leffer Published Jan 18, 2024 11:45 AM EST Get the Popular ...

Human evolution is often told as a tidy story of adaptation, yet some of our most familiar body parts still defy straightforward explanation. From the jut of the human chin to the curve of the outer ...

A consensus has emerged in recent years that psychotherapies—in particular, cognitive behavioral therapy (CBT)—rate comparably to medications such as Prozac and Lexapro as treatments for depression.

Researchers offer a new evolutionary explanation for the familiar scenario in which women bring a sweater into work, while their male counterparts feel comfortable wearing short sleeves in an ...

In a red-in-tooth-and-claw natural world, where self-interest seems to be a form of fitness, how does altruistic behavior arise? It's a fascinating question, and one that has been particularly ...

One of the big unsolved mysteries in evolutionary theory is why creatures are altruistic. Selflessness doesn’t seem to be one of those qualities that ensure survival of a bloodline, since, by ...

Randolph Nesse, MD, is a research professor of life sciences at Arizona State University. For more about evolutionary medicine, see the International Society for Evolution, Medicine and Public Health.

A loving relationship can be an oasis in uncertain times, but nurturing it requires attention, honesty, openness, vulnerability, and gratitude. This blog entry is about one of my many pet peeves.