马修·加略特是一名年轻的心理学家,他很好奇自控是否与能量有关。为了找到答案,他决定做一个测试,他把人们带进实验室,布置了一系列自控力任务。他在做每个任务前后分别测量人们的血糖含量。被试者在完成任务后血糖含量降得越多,他们在下一个任务中表现得就越差。看起来,自控消耗了身体的能量,而能量的消耗又削弱了意志力。于是,加略特给这些意志力耗尽的被试者每人一杯柠檬水。一半人拿到的是含有糖分的柠檬水,他们恢复了血糖含量。另一半人拿到的是“安慰柠 Matthew Garlitt, a young psychologist, wondered if self-control was energy-related. In order to find the answer, he decided to do a test, he put people into the laboratory, arranged a series of self-control tasks. He measured people’s blood sugar levels before and after doing each task. The more blood glucose levels were lowered after the subjects completed their task, the worse they performed in the next task. It seems that self-control consumes the energy of the body, which in turn weakens the willpower. As a result, Garrett gave each of these will-be-exhausted subjects a glass of lemonade. Half of the people got the lemonade with sugar, and they recovered their blood sugar levels. The other half got ” comforting lemon