Do flies really throw up on your food when they land on it?

A fly does some of its digesting outside its body before it even eats any food.

Jamie Theobald, Associate Professor of Biological Sciences, Florida International University • conversation
Nov. 8, 2021 • ~6 min

When and how was walking invented?

Walking has taken a very long time to develop, with evidence of bipedalism among early humans in Africa roughly 4.4 million years ago.

Jan Simek, Professor of Anthropology, University of Tennessee • conversation
Nov. 1, 2021 • ~7 min

What causes ADHD and can it be cured?

Even when the condition lasts a lifetime, there are behavioral treatments and prescription drugs that make it easier for people with attention-deficit hyperactivity disorder to thrive.

Gregory Fabiano, Professor of Psychology, Florida International University • conversation
Oct. 25, 2021 • ~7 min

Is chewing on ice cubes bad for your teeth?

A dentist explains why this is a habit worth breaking – no matter the cause or the strength of your cravings to keep doing it.

Matthew Cooke, Associate Professor of Pediatric Dentistry & Anesthesiology, University of Pittsburgh Health Sciences • conversation
Oct. 18, 2021 • ~5 min

Should teens taking ADHD, anxiety and depression drugs consume energy drinks and coffee?

Energy drinks and coffee both contain lots of caffeine. That’s a problem for teens, especially those who take prescription stimulants.

Lina Begdache, Assistant Professor of Nutrition, Binghamton University, State University of New York • conversation
Sept. 27, 2021 • ~5 min

How many stars are there in space?

Scientists have a good estimate on the staggering number of stars in the universe.

Brian Jackson, Associate Professor of Astronomy, Boise State University • conversation
Sept. 20, 2021 • ~5 min

What happens when your foot falls asleep?

An exercise physiologist explains how it’s a problem of communication between your brain and your body.

Zachary Gillen, Assistant Professor of Exercise Physiology, Mississippi State University • conversation
Sept. 13, 2021 • ~5 min

Why are planets round?

Gravity, mass and centrifugal force all contribute to the final shape of a planet.

James Webb, Professor and Director, Stocker AstroScience Center for Physics; Stocker AstroScience Center, Florida International University • conversation
Sept. 7, 2021 • ~4 min

What happens when the COVID-19 vaccines enter the body – a road map for kids and grown-ups

An infectious disease doctor explains the science behind COVID-19 vaccines at a level that children – and adults – of all ages can understand.

Glenn J Rapsinski, Pediatric Infectious Diseases Fellow, University of Pittsburgh • conversation
Aug. 30, 2021 • ~8 min

How would planting 8 billion trees every year for 20 years affect Earth's climate?

Planting a massive number of trees can help slow climate change, but it is only part of the solution.

Karen D. Holl, Professor of Restoration Ecology, University of California, Santa Cruz • conversation
Aug. 23, 2021 • ~6 min

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