They're in our pockets, workplaces, homes and schools — screens are everywhere. Americans are spending more than seven hours a day looking at screens. What is this doing to our well being? And does all this screen time affect different generations differently? Horizons moderator William Brangham explores what we know and don't know with researchers Kostadin Kushlev and Courtney K. Blackwell. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

While most scientific research has focused on men, when it comes to parenthood, it's all about mothers. But new research shows that men undergo profound changes biologically and psychologically when they become fathers. Horizons moderator William Brangham explores the surprising science of "Dad Brain" with Darby Saxbe. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Artificial intelligence data centers are popping up across America, spurring fierce backlash because of their need for huge amounts of water and power. Is the AI revolution worth the price communities are paying? Horizons moderator William Brangham explores the impact of data centers with Michael Webber, author of "Power Trip: The Story of Energy," which was also made into a series on PBS. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Unexplained sightings have appeared in our skies for years, and now the U.S. government has started releasing declassified files about what we used to call UFOs. What explains these phenomena, and what do we know about life beyond Earth? Horizons moderator William Brangham explores what we do know, and what we don't, with Leslie Kean and Garrett Graff, two authors who've studied this topic deeply. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Roughly one in ten Americans gets their water from the Colorado River. But a worsening drought, driven in part by climate change, is drying up the river, and states are fighting over water rights. Horizons moderator William Brangham explores what that means for communities and industries that depend on that water with Luke Runyon, Wade Crowfoot and Joel Ferry. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

More than 1 million women in the U.S. start menopause every year, yet this biological certainty is too often shrouded in secrecy or ignored by many mainstream researchers. Horizons moderator William Brangham explores what we do and don't know about menopause with Dr. Sharon Malone and Dr. Lauren Streicher. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Technology has changed the way students study and learn. Now, as artificial intelligence enters the classroom, proponents argue it will be a welcome revolution for schools — but with limited guardrails, could it do more harm than good? Horizons moderator William Brangham explores the future of AI and education with Khan Academy founder Salman Khan, who has launched a new AI assistant for teachers. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

The COVID pandemic overwhelmed our health care system and killed well over a million Americans. Fast-tracked vaccines saved millions, but missteps in the response and misinformation online have damaged trust. Horizons moderator William Brangham explores the state of America's public health system and whether it's prepared for the next pandemic with Dr. Josh Sharfstein and Elizabeth Cameron. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

For thousands of years, humans have tried to avoid growing old. Billions are spent every year on potions and procedures to make us look younger, feel younger and think younger. It's a hugely profitable, but ultimately fruitless hunt. But science has started to zero in on some proven techniques. Horizons moderator William Brangham explores that with Dr. Eric Topol and Dr. Sandra Weintraub. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

As the impact from the war in Iran grinds on, Americans are feeling it at the gas station. Evangelists for clean energy say the oil shock is an opportunity to embrace the transition to renewable power like wind and solar. With energy prices on the rise, Horizons moderator William Brangham explores if Americans are open to a new way of powering our world with Bill McKibben and Jigar Shah. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy