Structure of morphine (C17H19NO3 ), an endorphin-like chemical substance. |
Loretta Breuning’s 2012 Meet Your Happy Chemicals: Dopamine, Endorphin, Oxytocin, Serotonin (Ѻ), talks about endorphin and love, in overview. |
See main: FearIn 2001, American neurobiologist Donald Pfaff and associates showed that genetically modified mice made to be incapable of producing endogenous opiates (lacking endorphins), behaved such that the smallest fright made the animals freeze. [6] In large rooms, they stayed close to walls and showed other typical signs of fear. [7]