What do endorphins primarily help with?

Endorphins are neuropeptides produced by the body that are primarily associated with pain relief and pleasure. They bind to the body's opioid receptors, which helps to reduce the perception of pain and can induce feelings of euphoria, often referred to as the "runner's high." This natural pain-relieving property is crucial in both managing acute and chronic pain.

While endorphins do have a role in modulating mood and emotional states, their primary function relates directly to pain relief and the enhancement of pleasure. Hormones and neurotransmitters play a complex role in various cognitive and behavioral functions, but endorphins are not primarily known for improving memory or directly managing aggression and impulsivity; these areas are typically more influenced by other biochemical substances in the brain.

Therefore, the correct choice identifies the main roles of endorphins in pain relief and pleasure, and while they can have broader effects within the body, their most recognized functions are not accurately encapsulated in the other options presented. The complexity of neurochemistry means that connections to memory and behavior exist but are not the primary functions of endorphins themselves.