TED Talks Daily (SD video)

People often mix up food allergies and food intolerances, even though they require completely different medical treatments. Dr. Jen Gunter explains how allergies quickly trigger the immune system, while intolerances disrupt digestion and can sometimes take days to show up. Learn how to spot the difference and get a better understanding of how your body reacts to food. (For more on how your body works, tune in to her podcast, Body Stuff with Dr. Jen Gunter, from the TED Audio Collective.)

If you think social media is powerful, keep an eye on immersive video games, says futurist Noah Raford. As more and more people are drawn into gaming and virtual worlds, the communities they forge are spawning real-world social movements. Raford urges us to recognize what's really going on -- and then harness those forces to build the future we want.

Throughout the US, millions of freight trucks are buzzing goods across state lines, producing massive amounts of greenhouse emissions -- and some of them are only half full. Working to make this 400-billion-dollar-a-year supply chain process as efficient and sustainable as possible, freight expert Oren Zaslansky digs into the logistics of filling these trucks to their maximum capacity through algorithmic carpooling (think: ride-sharing your freight) -- bringing with it the potential of a more transparent and eco-friendly global supply chain.

Whose pleasure is prioritized during sex, and why? Psychosexologist Karen Gurney explains how a lack of equal pleasure in the bedroom actually reflects broader gender inequality in society -- and asks you to reconsider what dynamics are at play, even behind closed doors.

Despite common belief, retirement takes more than financial planning. And while you may be beyond ready to go on permanent vacation, you also have to psychologically prepare for when the novelty wears off. Riley Moynes explains the four phases of retirement and offers a framework for how to avoid the inevitable pitfalls of taking it too easy in order to help you make the most of your golden years.

Can you "boost" your metabolism by exercising more? Well, it's complicated. Diving deep into surprising truths about how the body conserves and expends energy in the form of calories, Dr. Jen Gunter reveals what your metabolism actually does, the role of exercise -- and other things weight loss culture doesn't want you to know. (For more on how your body works, tune in to her podcast, Body Stuff with Dr. Jen Gunter, from the TED Audio Collective.)

Nearly fifteen percent of the world's population lives with a disability, yet this massive chunk of humanity is still routinely excluded from opportunities. Sharing her experience growing up with an autistic sister, disability inclusion advocate Meghan Hussey illuminates the path towards an inclusive future in four steps, and it starts with an attitude check on assumptions and stereotypes. Designing a world built for everyone is not a "nice to have," Hussey says -- it's critical to the fabric of society.

After more than two decades as an anchor for ABC News, an on-air panic attack sent Dan Harris's life in a new direction: he became a dedicated meditator and, to some, even a guru. But then an anonymous survey of his family, friends and colleagues turned up some brutal feedback -- he was still kind of a jerk. In a wise, funny talk, he shares his years-long quest to improve his relationships with everyone (starting with himself) and explains the science behind loving-kindness meditation, and how it can boost your resiliency, quiet your inner critic and simply make you more pleasant to be around.

Climate action has historically had a gender-neutral lens, but this lack of intentionality allows underlying biases to sneak in and negatively impact women, says gender and climate researcher Zineb Sqalli. Using Vienna, Austria's gender-equal urban planning program as a model for how women can be included in every step of building a green economy, Sqalli offers solutions for advancing both sustainability and gender equality – at the same time.

"You are constantly becoming a new person," says journalist Shankar Vendantam. In a talk full of beautiful storytelling, he explains the profound impact of something he calls the "illusion of continuity" -- the belief that our future selves will share the same views, perspectives and hopes as our current selves -- and shows how we can more proactively craft the people we are to become.

Eating pizza with a stuffy nose just isn't as satisfying -- and there's a reason for that. Dr. Jen Gunter explains how our ability to smell and taste work together to give us a full sensory experience. So whether you're sniffing the caramelized aroma of coffee, a whiff of trash or a trillion other things, your brain knows exactly what's under your nose. (For more on how your body works, tune in to her podcast, Body Stuff with Dr. Jen Gunter, from the TED Audio Collective.)

Conservation champion and TED Fellow Adjany Costa is on a mission to empower Indigenous communities. Instead of imposing pre-designed policy and plans on local people, she says, conservation efforts should center those who know the land best, enabling them to tailor solutions to their unique environmental, social and economic realities. She presents a roadmap for Indigenous communities to take back ownership of their heritage and reclaim stewardship of their land. "Real community-based conservation ... fosters fierce independence," Costa says.

How do you raise kids to step outside of their comfort zones and unlock their inner potential? It all starts with helping them develop a resilient mindset. Mother and business owner Tameka Montgomery makes the case for cultivating an entrepreneurial outlook at an early age -- and offers five strategies for emboldening young minds to embrace opportunities and solve their own problems, no matter the path they choose.

The housing market can be vexing: while some neighborhoods get ridiculously expensive and price out longtime residents, others have historic homes sitting vacant without demand. Equitable housing developer and TED Fellow Bree Jones shares how she found a way to revitalize neighborhoods experiencing hyper-vacancy while preventing gentrification -- supporting home buyers and transforming communities along the way.

Feeling safe is a human right -- but in many African countries, colonial-era laws make it dangerous for LGBTQIA+ people to gather and share their sexual orientation, gender identity or gender expression. Creating a space that leaves no room for discrimination, pan-African LGBTQIA+ advocate Okong'o Kinyanjui cofounded an online platform that gives queer people access to opportunities, mentorship and support, providing the visibility and community every person needs to thrive.