O empresário do setor de tecnologia Bryan Johnson fez da missão de sua vida retardar o envelhecimento e a morte, recorrendo a pílulas e recebendo até transfusões de sangue do filho, como mostrado em documentário na Netflix. Netflix

Saga para estender a vida humana é tanto fascinante quanto repleta de riscos morais

Entre os grandes nomes que estão investindo muito dinheiro para prolongar suas vidas estão o fundador da Amazon, Jeff Bezos, os fundadores do Google, Sergei Brin e Larry Page, e Larry Ellison, da Oracle.
Walt Whitman volunteered at Army hospitals in Washington, D.C., during the U.S. Civil War. Universal History Archive/Universal Images Group via Getty Images

Compassion amid chaos − how one of America’s greatest poets became a lifeline for wounded soldiers

Lacking formal training in medicine or nursing, Walt Whitman nonetheless realized ‘the simple matter of personal presence, and emanating ordinary cheer and magnetism’ could go a long way.
A man of genius – but his ideas were not to the benefit of all humankind. Mondadori Portfolio/Hulton Fine Art Collection via Getty Images

Francis Galton pioneered scientific advances in many fields – but also founded the racist pseudoscience of eugenics

Smart people can have really bad ideas – like selectively breeding human beings to improve the species. Put into practice, Galton’s concept proved discriminatory, damaging, even deadly.
When Frank Conrad broadcast the results of the 1920 presidential election, he had no idea that politics would be forever transformed. Bettmann via Getty Images

100 years ago, the first commercial radio broadcast announced the results of the 1920 election – politics would never be the same

For centuries, people largely read politicians’ words. But with the advent of radio, the ability of politicians to engage and entertain became crucial components of their candidacies.
For millennia, theologians taught that the sole purpose of sex was reproductive. Now, almost everyone agrees that sex has many purposes – and benefits. Dean Drobot/Shutterstock.com

What is sex really for?

The purpose of sex may seem obvious, but it has perplexed and intrigued a variety of great minds for millennia.
Inam Rehman, manager of Jubilee Vape & Smoke Inc., vapes while discussing New York Gov. Andrew Cuomo’s push to enact a statewide ban on the sale of flavored e-cigarettes. Bebeto Matthews/AP Photo

From smoking to vaping: Why do we abuse our lungs?

E-cigarettes are taking a growing toll on health, but they are only the most recent in centuries of harm. Are lungs are made for the most essential function of life, how did humans come to abuse them?

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