Novedades

Daughter. Duhitár-. Dustr. Dukte. Listen to these English, Sanskrit, Armenian and Lithuanian words, all meaning the same thing, and you hear echoes of one of history’s most unlikely journeys. All four languages—along with hundreds of others, from French and Gaelic, to Persian and Polish—trace their origins to an ancient tongue spoken as the last ice age receded. This language, which we call Proto-Indo-European, was born between Europe and Asia and exploded out of its cradle, fragmenting as it spread east and west.

Reversing Human Aging was the first book in history to describe how aging works, how to reverse it, and the consequences of doing so. Originally published in 1996, it has largely passed the test of time. In the next two weeks, we will upload a new, electronic edition of this book and make it available for those interested in the work of Double Helix Corporation. The new edition, however, was taken directly from my original manuscript as submitted for publication, rather than from the publisher’s final version as actually printed. To the contrary, it retains the uncorrected style of my ...

We spend roughly a third of our lives in bed, but for millions of us, not all of that time is spent sleeping. We strive for eight hours per night, only to lie awake thanks to stress, our ever-present devices, a new baby, or that 4pm coffee you thought you needed. As sleep scientist and recovering insomniac Merijn van de Laar shows, we’re hardly the first to experience this. When homo sapiens evolved hundreds of thousands of years ago, when saber-toothed tigers were their biggest nighttime worry, wakefulness served to protect one’s tribe at night.

We humans have an extraordinary capacity for compassion—much of it in response to the atrocities we inflict on the planet, its animals, and each other. The popular explanation for this paradox is that we evolved as carnivorous “killer apes,” who gradually curbed our lust for violence (with frequent exceptions) by implementing humane social norms. This explanation is so well worn, especially in the American psyche, that it epitomizes cliché. So, we could be forgiven for believing it, when nearly every word is fiction.

Researchers of human behavior have identified an "orgasm gap": Men usually orgasm during intercourse, whereas women often do not. This book addresses this mystery. The two leading explanations are either that women are "psychologically broken"—Freud's theory—or badly designed—the "by-product theory." However, there is a much more compelling third explanation. Evolutionary biology, anatomy, physiology, and direct sex research suggest women have evolved under their own selection pressures and orgasm is a fitness-increasing consequence of such selective factors.