You may have heard that your brain stops growing after you are 25 years old, or that adult brains can�t make new neurons.While this was widely held to be true…

Vaccinations save an estimated 2.5 million lives worldwide each and every year[1]. But a growing number of people are opting not to vaccinate themselves or their children�putting their lives, and…

Summer is in full blast. You�ve got your swimwear on, and your shades at the ready. If you�re the cautious type, you�ve also prepared for some of the dangers of…

Every year when winter turns to spring, the longer days and milder weather bring people out of their hibernation and back into the great outdoors. And, not a moment too…

Would you like an extra hour of sleep? What if it meant losing an hour 6 months later? For many people around the world, this question isn�t hypothetical; it�s standard…

In 1994, Andrew H. Tisch, the CEO of one of the biggest tobacco companies in the world, appeared before Congress, along with six other tobacco CEOs, and testified under oath…

As human beings, we are powerfully influenced by social norms�or, to be more precise, we�re influenced by what we perceive social norms to be. But what if we�re wrong about…

By default, sleep is controlled by biology. Bedtime and wake time is regulated by one�s circadian clock, which is in turn controlled by exposure to light. But in modern industrialized…

�Time is a great teacher,� said the composer Hector Berlioz, �but unfortunately it kills all its pupils.� That every one of us will one day die is the most inevitable…

We all know that stress is bad for your health�the government�s been telling us so literally since the 1970s. It�s true: studies show that high levels of stress put you…