填空题.Many people bit the gym or pound the pavement to improve cardiovascular health, build muscle, and of course, get a rockin' body, but working out has above-the-neck benefits, too. For the past decade and so, scientists have pondered how exercising 1 boost brain function. Regardless of age or fitness level, studies showing that 2 making time for exercise provides some serious mental benefits. One of the most common mental benefits of exercise is stress relief. Working up a sweat can help 3 manage physical and mental stress. Exercise also increases concentrations of norepinephrine, a chemical that can moderate the brain's response from stress. 4 So go ahead and get sweaty-working out can reduce stress and boost the body's an ability to deal with existing mental tension. Whether it's a pick-up game 5 of soccer, a group class at the gym, or just a run with a friend, exercise rarely happens in a bubble. And that's a good news for all of us. Studies show that most 6 people perform better on aerobic tests when pair up with a workout buddy. 7 Pin it within inspiration or good old-fashioned competition, nobody wants to let the 8 other person down. In fact, being part of a team is so powerful that it can actual 9 raise athletes' tolerances for pain. Even fitness beginners can inspire the each other 10 to push harder during a sweat session, so find a workout buddy and get moving!