 Get ready to strengthen your relationships, whether it's with friends, loved ones, or even your coworkers. An analysis of studies at UC Berkeley found that all you have to do is invite them to take a walk or a hike with you. For example, in one study, mothers and daughters spent 20 minutes walking before solving puzzles together. The result, the walkers showed improved interactions with each other, and they stayed more focused and collaborated better on cognitive tasks.