Now that American troops are leaving Iraq and Afghanistan, should the detention center at Guantanamo Bay close? Then, the mental health of athletes is a hot topic after Simone Biles withdrew from the majority of the gymnastics events at the Tokyo Olympics. Plus, girls and boys actually internalize healthy ideas from Moana, Elsa, and other Disney Princesses. Also, on today's show: how caffeine helps bumblebees focus on a very particular job; lead pollution could have poisoned some people's personalities; the new trend of female pop stars baring their bodies and their souls. (AP Photo/Gregory Bull)

What the January 6th attack on the US Capitol was like for the police officers who were there that day. Then, how laughing gas has the ability to make depressed people happier. Plus, remote work and freelancing were on the rise before the pandemic, but now they’re on a whole new level. Also, on today's show: a retired neurologist shares his sobering but hopeful story about early-stage Alzheimer’s; why the Common Core standards failed to lift achievement for students. (Andrew Caballero-Reynolds/Pool via AP)

Is it better to read from a screen or the page? Then, not all people like a drug that can treat dwarfism in children. And, the true history of a World War II-era fashion model, spy, and countess. Also, on today’s show: a chef embraces his Jewish heritage through traditional food; a scientist tries to gauge the effects of wildfire smoke on air quality.

President Biden's big plans for increasing competition in the US economy. Then, a historian's report from inside the Olympic bubble in Tokyo. And, what’s happening to the outdoorsy towns that are being flooded by young people working remotely by day and recreating outdoors after hours? Also, on today's show: a look back at the Apollo 15 mission that accomplished a lot of firsts; the tug of war between consumption and economic recession. (AP Photo/Gregory Bull)

Tunisia’s democracy is in crisis. Then, spelling bees provide a fascinating insight into Generation Z. Plus, musicians aren’t worried about artificially intelligent computers replacing them. Also, on today's show: why photojournalists should document the horrors of war; computers small enough to ride on a snail’s shell; how an ecologist gathered and sorted tiny fossils of shark scales to gauge the health of shark populations thousands of years ago.

What becomes of the Afghan civilians who worked alongside American troops during the 20-year war there? Then, the Great Salt Lake in Utah is drying up - what happens if it disappears? Plus, the strange phenomenon of micronations and why most countries don’t take them too seriously. Also, on today’s show: how an artist helped a small town rediscover itself; middle-aged Americans have worse mental and physical health than previous generations; the possibility of recharging a smartwatch using your skin.

Britney Spears has everyone talking about conservatorships, so we'll explain how they work. Then, how can the US prevent domestic terrorism without trampling on the Free Speech and Gun rights of American citizens? And, does having more Airbnb rentals in a neighborhood lead to more crime? Also, on today’s show: why we could see an increase in deaths due to high heat and humidity; Disney’s most interesting characters aren’t always nice; how bride kidnapping in Kyrgyzstan could be leading to an increase in female migration. (AP Photo/Chris Pizzello)

Green LED light can assuage the pain for people with chronic migraines. Then, a rapping molecular biologist works to make science not just more diverse but also more effective. And, telehealth is becoming the go-to for many doctors and their patients. Also, on today’s show: lithium batteries have a painful cost for us and our environment; fences shape ecosystems; the Yellowstone supervolcano might not erupt as soon as we once thought.

Why are billionaires and private companies so invested in the idea of commercial space flight? Then, the high-tech way conservators at the National Gallery of Art are peeling back the layers of paint on famous masterpieces. And, a military historian says America’s failures in Iraq and Afghanistan have made it clear that our military cannot solve the world’s problems. Also, on today's show: artificial skin that can feel pain; how the lack of spectators at the Olympic Games could affect the competition.

Vice President Kamala Harris takes the lead on two controversial political topics, so what will that mean for her political ambitions? Then, doulas are common companions during childbirth, and now they’re becoming more common for the dying, too. And, who's responsibility is it to clean up space junk in Earth's orbit? Also on today’s show: the story of human's obsession with aliens; eating disorders can modify brain circuits; why universities often come up short in making space for students with disabilities in science and technology programs. (AP Photo/Evan Vucci)