Runners sometimes refer to having a “runner’s high.” Letha “Etty” Griffin, M.D., an orthopedic surgeon, spoke about this phenomenon and a new study that indicates that the "runner's high" may be the result of the activation of a response in our brain similar to what happens when people use marijuana.

“'Runner’s high’ means something different to each runner,” says Dr Griffin. “It’s often described as a general good feeling about yourself.” She says people who routinely run or work out don’t think or feel normal if they don’t work out. “It can have an addictive feeling,” she adds.

New findings from the Georgia Institute of Technology suggest that the effects of marijuana are similar to a “runner’s high.” Dr. Griffin believes there’s a scientific basis for this. “We’ve known for years there may be some chemical called endorphins that attach to the mood centers of the brain and may indeed be responsible,” she says.

Georgia Tech’s study indicates that it may not be endorphins but another substance that leads to a sense of calm and well-being characterized as a "runner's high." The controversy about a runner’s high comes from the fact that it is subjective and does not occur every time.

However, medical research shows that a body system called the endocannabinoid system may be activated by exercise. This same system is activated by marijuana use, which helps explain why the high from running is described as like that of marijuana.

Whether you get the runner's high or not, regular exercise - whether it's running, walking or jazzercise - is good for your body and your brain. So, go for it."

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