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.
What Are Endorphins. Endorphins are created in response to certain stimuli, such as fear, pain or stress. They come from different parts of the body, including the pituitary gland, the brain and the nervous system. They are neurotransmitters, which means they can prompt or suppress the signaling of nearby neurons.hat Are Endorphins. Endorphins are created in response to certain stimuli, such as fear, pain or stress. They come from different parts of the body, including the pituitary gland, the brain and the nervous system. They are neurotransmitters, which means they can prompt or suppress the signaling of nearby neurons.