Have you ever felt exhilarated about hitting a professional or personal milestone, only to find yourself, less than 24 hours later, having an Instagram-triggered crisis and tumbling down a black hole ...

Not too long ago, on a cold winter night, somewhere in America, there was a tween who wanted more screen time and a parent who said no. The tween in question was advocating vociferously for her right ...

Share on Pinterest The human mind may have a bias to constantly want more. Al Barry/Getty Images Researchers used a reinforcement learning model to learn more about why we habituate and compare, ...