Cold sore: Viruses or localised infections can cause the eye to redden â the problem usually starts in one eye, but can spread to both. The cold sore virus, which 90 per cent of us carry, can sometimes also infect the eye, causing inflammation.
Endorphins are chemicals, called peptides, that are made in the body. They have much of the same effect on a person as opium or morphine. As a result, they actually lower the feeling of pain in the body and can create a feeling of bliss or euphoria.
Endorphins are endogenous opioid polypeptide. compounds. They are produced by the pituitary gland. and the hypothalamus in vertebrates during exercise, excitement, pain, consumption of spicy food and. orgasm, and they resemble the opiates in their abilities. to produce analgesia and a feeling of well -being. Endorphins work as natural pain relievers..