Your social circle might be the key to a long, happy life. That’s according to Simon Sinek, a best-selling author and leadership expert, who says friendship is the “ultimate biohack” for not only ...

The simple act of being a better friend — and having close, positive relationships in your life — can make you healthier, ...

Leadership expert Simon Sinek is the author of Start With Why and Leaders Eat Last. He teaches leaders and organizations how to inspire people and is based in New York.

In 2009, Simon Sinek stood on a modest stage in front of ... Later that year, Sinek's 18-minute talk became his book, Start With Why. When his TED talk went viral and his book became a bestseller ...

In 2005, Simon Sinek ’95 seemed to have it all ... In addition to “Start With Why,” Sinek is the author of three more books, including “Find Your Why: A Practical Guide to Discovering Purpose for You ...

The Harvard Study on Adult Development, for one, has been monitoring the well-being and happiness of humans for over 85 years. Marc Schulz and Robert Waldinger, who currently lead the study, confirmed ...

Simon Sinek is the author of four books, including his latest, "Leaders Eat Last." Sinek sat down with Business Insider to discuss how the Marines embody leadership as a culture. Following is a ...