Humans clearly demonstrate altruistic tendencies towards other members of groups with which they identify.One bit of evidence that this is innate comes from studies with oxytocin. Those who inhale the ...
The connection between self-control and glucose is not unique to humans.A bunch of trained dogs were divided into two groups. One group was instructed to sit and stay for 10 minutes. Dogs in the other ...
Males fight for dominance in order to gain access to the limited supply of female eggs. This is why male birds expend energy on brightly colored plumage, but female birds do not.That said, if a male k ...
Economists have long since known that people want to be rewarded for taking on risk. Investments are thus judged by their risk-adjusted returns (Sharpe ratios). A typical hedge fund has a Sharpe ratio ...
Before lead was removed from gasoline, lead from car exhaust got into the air, was breathed in by kids, lowered their IQs, and increased crime rates (there is a very strong correlation between IQ and ...
Imagine two stakes in your backyard. Now draw an east-west, north-south coordinate system on your lawn. Measure the east-west distance between the stakes and also the north-south distance. Take the sq ...
Roughly five million years ago, humans split off from chimpanzees, who had in turn split off from gorillas five million years earlier.There is much more diversity in chimp DNA than in human DNA, so pr ...
There are these people called "ethicists" or "moral philosophers". They make their livings by thinking about what is right and wrong and how to live a moral life. Does all this thinking get them anywh ...
In evolutionary times, we were far more likely to die from starvation than from diseases related to obesity. In those times, when food was available, it was best to stuff oneself.This can be seen in a ...
Nicole Mead and Vanessa Patrick had a bunch of dieters, one at a time, sit and watch a movie, each with a bowl of candy next to him. Some were told they shouldn't eat the candy, while others were told ...