More than half of Americans live in states where recreational cannabis is legal. While alcohol remains the most-used drug in the US, daily cannabis use has actually outpaced daily drinking, according to a study following four decades of consumption trends. Changing drinking habits and new products likely…

Not so long ago, a friend texted me from a coffee shop. He said, "I can't believe it. I'm the only one here without a tattoo!" That might not seem surprising: a quick glance around practically anywhere people gather shows that tattoos are widely popular. Nearly one-third of…