If you’ve ever completed a long run and felt like you could keep going a few more miles, you may have experienced a runner’s high. It is a short-lasting feeling of euphoria or bliss that occurs after exercise or running.. Euphoria is a sense of extreme joy or delight.
In this case, it occurs after intense or lengthy exercise. Often, people who experience a runner’s high also report feeling less anxiety and pain immediately after their run.
Also, it may be noted that not everyone who runs or exercises intensely will get a runner’s high. Also, It’s difficult to measure “euphoria” because the experience is subjective.
Some more details (non conclusive)
For decades, scientists believed endorphins were responsible for a runner’s high. It makes sense — they do have a great deal of beneficial effects.Endorphins are neurochemicals released naturally by your body. They’re made by your central nervous system and pituitary gland. Endorphins act on the same part of your brain as opioids like morphine. That’s why they’re called the “happy” chemicals. They’re released during exercise or in times of pain or stress, as well as in response to eating or sex.
But in recent years, research has revealed that endorphins may not have much to do with it after all. Instead, new research points to another type of molecule: endocannabinoids. Like endorphins, exercise releases endocannabinoids into the bloodstream. If you feel euphoric or deeply relaxed after a run, these molecules may be the responsible party.
However, it remains unclear why some people experience a runner’s high and some do not. It’s also unclear what you can do to make a runner’s high happen. But even without feeling this euphoric state, exercise like running is a healthy choice for most people. And that’s a feel-good reason as any.
Plus, you may need to run for several miles at a time to reach the point where a runner’s high could occur. For many people, this distance might not be easy or possible.