by Karly Forker
Sweat glistening, muscles burning, and suddenly, a wave of relaxation and happiness washes over you. This phenomenon is no fantasy but a well-studied event commonly known as “runner’s high.”
When you engage in aerobic activities like running, cycling, or swimming, your body experiences increased oxygen intake, elevated heart rate, and activation of the endocannabinoid system. This system is responsible for regulating a variety of physiological processes such as mood, appetite, and pain, as well as the experience of a runner’s high.
Image Credit: Copyright Amanda Beach Photography, used with permission.
During exercise, the endocannabinoid system is activated, leading to the release of chemicals called cannabinoids, such as anandamide. These molecules contribute to the feelings of bliss and relaxation associated with runner’s high and are thought to contribute more than another group of chemicals called endorphins since cannabinoids can cross the blood-brain barrier, while endorphins cannot. However, during extended periods of exercise, the body also produces endorphins. These are hormones that play a role in the body’s stress response, which is activated during strenuous exercise. The endorphins bind to special receptors in the brain called opioid receptors, which in turn reduce the feeling of pain and induce feelings of euphoria and contentment. You can think of endorphins and endocannabinoids as a team that works together towards the feeling of a runner’s high.
While the exact mechanism of runner’s high is still being investigated by researchers, it has been proven that regular aerobic exercise can greatly increase your likelihood of experiencing the phenomenon. Whether you’re an experienced runner or a beginner, incorporating frequent cardio into your routine not only improves your physical health but can also lift your mood and enhance your well-being. People often admit that a reason they do not exercise regularly is that they have low energy and can’t motivate themselves to get out the door. Interestingly, regular exercise can actually boost energy and activate reward pathways in the brain to help you build consistency.
Image Credit: Copyright Amanda Beach Photography, used with permission.
To wrap things up: runner’s high is a fascinating phenomenon resulting from the interplay of neurochemicals that occur during prolonged aerobic exercise. From the release of endorphins and cannabinoids to the activation of dopamine and serotonin pathways, many factors contribute to the characteristic feeling of euphoria and happiness. So lace up your running shoes and dash off to experience for yourself the science behind runner’s high!
