When you need a pick me up, reach for something with protein. Scientists at the University of Cambridge found that the nutrient activates orexin cells, which release a stimulant in the brain that’s responsible for wakefulness. Whats more protein neutralizes the effects of sugar, keeping your energy levels stable, even small amount of protein seems to cancel out the effects of large amounts of glucose. So if you normally grab a piece of fruit when you hit an afternoon slump pair it with a small handful of nuts or hard-boiled egg to power through the rest of your day.