On a scale 1-10 how do humans rate the pain relief provided by a) endorphins and b) Morphin.
Endorphins and morphine are both used to relieve pain, but their effectiveness and potency differ.

On a scale of 1-10, endorphins can provide pain relief ranging from 4-8, depending on the individual and the severity of their pain. Endorphins are naturally occurring substances in the body that provide a feeling of pain relief and well-being.

Morphine, on the other hand, is a highly potent opioid drug and can provide pain relief ranging from 8-10. However, it is a controlled substance and should only be used under the supervision of a healthcare provider.

It is important to note that pain tolerance and relief vary from person to person, and the above ratings are only general estimates.
Could you clarify the scale of pain relief that you are referring to? For example, would a 5 mean that 50% of my pain was relieved? Or would it mean that my perceived pain from a scale from 1-10 where 1 meant zero pain and 10 meant excruciating pain went down 5 units?