Endorphin Properties Explained

This question asks to identify the true statements about endorphins from the given options.

Option A: A substance produced by the body

Endorphins are indeed substances naturally produced within the human body. They are peptides synthesized primarily by the pituitary gland and the hypothalamus. This makes statement A true.

Option B: A synthetic substance

Since endorphins are naturally produced by the body, they are not synthetic. Synthetic substances are created artificially. Therefore, statement B is false.

Option C: Involved in perception of pain reduction

Endorphins function as natural analgesics, meaning they help reduce the perception of pain. They bind to opioid receptors, blocking pain signals from reaching the brain and also contributing to feelings of pleasure or well-being. This aligns with statement C, making it true.

Option D: Involved in increasing the feeling of pain

This statement contradicts the known function of endorphins. As natural painkillers, they decrease or block pain signals, rather than increasing the feeling of pain. Therefore, statement D is false.

Conclusion on Endorphin Statements

Based on the analysis, the statements that are true about endorphins are:

• A substance produced by the body
• Involved in perception of pain reduction

Therefore, the correct options are A and C.