Add Yahoo as a preferred source to see more of our stories on Google. When you're learning something new, your brain is using acetylcholine, a neurotransmitter that has been shown to be deficient in ...

Lapses in attention are common for adults, and the longer we are supposed to be "on-task," the more likely we are to be mind wandering (or sleeping) in class or during a meeting. Source: Stokkete / ...

Children often find it difficult to stay focused because they are high in energy and are easily distracted. One of the best ways to improve their concentration is through regular physical exercise.