Going Outside Can Change Our Hormones and Imp...

Life expectancy has risen dramatically since 1900, reshaping how we understand aging. Scientists now view skin not just as a surface indicator, but as a biological marker of systemic health. In this podcast episode, Scientific American Custom Media explores how longevity science ...  Show more

In this episode, host Rachel Feltman speaks with freelance science journalist Hannah Seo about a promising new development in male contraception: a hormone-free birth control pill that reversibly stops sperm production has just passed its first human safety trial. Seo explains ho ...  Show more

When you hear “invasive plant,” you might picture an aggressive species taking over and harming the environment. But what if the way we think about invasive plants is part of the problem? Host Rachel Feltman chats with Mason Heberling, associate curator of botany at the Carnegie ...  Show more

NASA and the National Oceanic and Atmospheric Administration have confirmed we’re in the solar maximum, a period of increased solar activity that could lead to more auroras. Also, the Centers for Disease Control and Prevention has reported a fivefold surge in whooping cough cases ...  Show more

Peanut allergies have surged dramatically in recent decades, and scientists are still working to understand why. In this episode, journalist Maryn Mckenna, who recently authored an article on the subject, and host Rachel Feltman explore the latest research on causes, treatments a ...  Show more

Scientists are tuning in to a surprising conversation happening inside us—between our gut and our brain. Host Rachel Feltman chats with Maya Kaelberer, an assistant professor at the University of Arizona’s department of physiology, to explore how intestinal cells and microbiomes ...  Show more