Health: why does cracking joints feel good?

Self-tutoring about joint health: the tutor checks about something.

I have a few joints that I crack often, and it always feels good to do so. Why can it be so relieving to crack a joint?

Apparently, it may simply be that, as the crack happens, the associated ligaments, tendons and muscles shift to a more relaxed position.

Source:

canarywharfchiropractic.co.uk