HumansHow Japan got a fix on brain-teasing highs Sudoku was the biggest puzzle craze to hit the West from Japan, but as The Puzzle Ninja shows, there are plenty more, including Kakuro, KenKen and O'Ekaki Culture
HealthHow social stress makes your brain vulnerable to depression Bullying and other social stresses may make it easier for inflammatory substances to enter your brain, altering your mood and leaving you susceptible to depression News