In marketing and advertising, the "unattainable triangle" refers to a maxim that high quality goods delivered quickly and efficiently to customers will always come at a higher price and vice versa.

"If at first you don't succeed, try, try again!" This saying is drummed into us from a young age, when our tower of building blocks keeps collapsing or we just can't get the hang of riding a bicycle.

A trailblazing new study from researchers in Germany frames clinical depression in a fresh light. The researchers found that adapting to life circumstances by letting go of unattainable goals may be a ...