Since humanity’s earliest days, we’ve been plagued by countless disease-causing pathogens. Invisible and persistent, these microorganisms and the illnesses they incur have killed more humans than anything else in history. But which disease has been the deadliest? Dan Kwartler digs into how human progress and innovation throughout history exposed us to surprising new maladies. This TED-Ed lesson was directed by BASA, narrated by Addison Anderson and the music was created by Igor Figueroa, Estudio Mono ..read more

Could the tech industry's complex algorithms support people during their darkest times, rather than just deliver targeted ads? Drawing from his own experience with depression, global mental health researcher Sandersan Onie shows how internet search behaviors can provide valuable insights into suicide risk and potentially help save lives by reaching people in a deeply personal way, at a crucial moment ..read more

Having your period is exhausting — and for many people across the world, menstruation is even more challenging because of stigmas and difficulty getting basic hygiene supplies, says social activist Ananya Grover. In this uplifting, actionable talk, she shares how "Pravahkriti," her campaign to spread period positivity, creatively engages with everyone to promote menstrual health, raise awareness and break taboos around periods. After the talk, Shoshana has a sweeping conversation with OB/GYN, activist and fellow TED Audio Collective host Dr. Jen Gunter on breaking down period myths and misconc ..read more

Biologist Kathleen McAuliffe dives into emerging research that explores how certain gut bacteria can influence major parts of who you are, from your personality to life-changing neurological disorders. Learn more about how this ongoing clinical medical and pharmaceutical research might change how we treat disease — and discover the impact of your internal microbial makeup on your mood, weight and more ..read more

Have we lost the practical wisdom of what happens as people die? With lessons from a career witnessing thousands of people's final breaths, palliative care expert Kathryn Mannix urges us to demystify the experience of death, sharing how a better understanding of what actually happens can reduce fear in the final days, for you and your loved ones. After the talk, Shoshana shares how one patient changed her life forever and led her to found endwellproject.org, a platform dedicated to making end-of-life PART of life ..read more

A Chinese saying goes, "There's no pleasure in eating without meat." And the data backs that up: every year, China consumes 26 percent of the world's meat and 45 percent of its seafood — numbers that could grow alongside rising incomes. Impact investor Tao Zhang shows why getting Chinese consumers to switch to plant-based alternatives is vital to tackling climate change and explores how it's also a massive business opportunity to bring tasty, affordable new proteins to market ..read more

How does getting an abortion — or not — influence a woman's life? Demographer Diana Greene Foster puts forward the results of The Turnaway Study, her landmark work following nearly 1,000 women through abortion or childbirth, presenting definitive data on the long-term physical, mental and economic impacts of the right to choose on pregnant people and their families. "Access to abortion is about control over one's body, life and destiny," says Foster ..read more

Legendary actor and mental health advocate Glenn Close is on a quest to change how we think about mental health, starting with her decision to speak out about her own family's struggles — a brave choice considering the stigma that pervades the topic. In a sweeping conversation with TEDWomen curator Pat Mitchell, Close shares the inspiration behind the advocacy group she founded to combat the crisis, underscoring the transformative power of community and the critical need for comprehensive mental health care systems ..read more

Racism makes our economy worse — and not just in ways that harm people of color, says public policy expert Heather C. McGhee. From her research and travels across the US, McGhee shares startling insights into how racism fuels bad policymaking and drains our economic potential — and offers a crucial rethink on what we can do to create a more prosperous nation for all. "Our fates are linked," she says. "It costs us so much to remain divided." After the talk, Shoshana sits down with Dr. Aletha Maybank — physician, chief health equity officer and senior vice president of the American Medical Assoc ..read more

Your immune system is more socially aware than you think, says social neuroscientist and psychology professor Keely Muscatell. Investigating the interconnectedness of your mood and your inflammatory system, she offers an evolutionary reason as to why being sick may make you feel depressed — and vice versa ..read more