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.