Heaps of research suggest that social relationships make people happier—but which relationships, specifically? A guilt-ridden afternoon with a mother-in-law might not have the same effect as drinks with a best friend. A “fair-weather friend” stands […]

The American conventional wisdom about weight loss is simple: A calorie deficit is all that’s required to drop excess pounds, and moderating future calorie consumption is all that’s required to maintain it. To the idea’s […]