The researchers say than encouraging such simple "positive acts" could help children to get along with classmates and even prevent instances of bullying.

BBC: Kinder children are more popular

Officers need to motivate their classmates by being in even greater physical condition that the enlisted students.

FORBES: 5 Reasons Why Good Fitness Makes for Better Entrepreneurial Leadership

We get stuck focusing on our immediate circle and forget about classmates, former colleagues, even old friends.

FORBES: Career Management In 5 Minutes A Day