Ai Weiwei: 'Life is never guaranteed to be safe'
Ai Weiwei, the Chinese artist who will soon take over Tate Modern's Turbine Hall, on why he wants to tell people that it's OK to speak out.
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Optical Illusion: Perspective is Everything
Definition of "illusion": something that deceives by producing a false or misleading impression of reality.
Noel Bairey Merz: The Single Biggest Health Threat Women Face
urprising, but true: More women now die of heart disease than men, yet cardiovascular research has long focused on men. Pioneering doctor C. Noel Bairey Merz shares what we know and don't know about women's heart health -- including the remarkably different symptoms women present during a heart attack (and why they're often missed).
Simon Sinek talks culture with Zappos CEO Tony Hsieh
Simon Sinek makes a surprise appearance at Zappos. Simon and Tony Hsieh talk about company culture, and Tony shares what he's learned after 20 years of growth at Zappos.
The Hidden Power of Siblings: Jeff Kluger at TEDxAsheville
This video features Jeffrey Kluger exploring the powerful bond between siblings.
Wayne Dyer's Leukemia & John of God's Healings on Wayne
Dr. Wayne Dyer Discusses his Leukemia & John of God's healings with Lilou Mace.