It’s worth noting that the relationship between endorphins and feeling good is not linear; as Prof Sarnyai points out, our opioid receptors are the ones which reduce the pain levels, so once they’re activated, that impact has been felt. In this way, he says: “High levels of endorphins may not be better than just high enough levels of endorphins.”

However, if you want to make sure you leave your workout feeling good, here are just a few ways you can tweak your workout routine to get those endorphins pumping, according to Makwana.

1. Vary your workouts

Get the best of both worlds by mixing up your approach, Makwana suggests. “Combining both high-intensity sessions and longer-duration workouts can maximise endorphin release,” he explains.

2. Push past your comfort zone (but don’t overdo it)

While pushing yourself to the limit every session isn’t a good idea, making space for those workouts that really challenge you will provide an extra endorphin hit.

3. Listen to music

If you don’t already have a running playlist that gets you going, now’s the time to make one. “Some studies have shown that listening to music you enjoy while exercising can elevate mood and potentially boost endorphin levels,” Makwana says.

4. Exercise with friends

Social interactions can trigger the release of positive neurotransmitters such as serotonin, dopamine and endorphins, so why not head out for a run alongside a friend and have a chat while you’re at it?

Does running faster lead to a higher endorphin spike?