… Researchers have identified a dozen-odd gene variants that can increase a person’s susceptibility to depression, anxiety, attention-deficit hyperactivity disorder, heightened risk-taking, and antisocial, sociopathic, or violent behaviors, and other problems—if, and only if, the person carrying the variant suffers a traumatic or stressful childhood or faces particularly trying experiences later in life. This vulnerability [...]

[We] live in a world very different from the one we evolved in. Our reflexive defenses might be optimized for the risks endemic to living in small family groups in the East African highlands in 100,000 BC, not 2009 New York City. But we can go beyond fear, and actually think sensibly about security. Far [...]

But it was too late now. The past could always be annihilated. Regret, denial, or forgetfulness could do that. But the future was inevitable. There were passions in him that would find their terrible outlet, dreams that would make the shadow of their evil real. – The Picture of Dorian Grayby Oscar Wilde, 1890 Evolve. [...]

Are humans hard-wired to be ruthlessly competitive or supportive of one another? The behavior of our ape relatives, known as peaceful vegetarians, once bolstered the view that our actions could not be traced to an impulse to dominate. But in the late 1970s, when chimpanzees were discovered to hunt monkeys and kill each other, they [...]