Optic nerve is the most affected as it results in total blindness
The procedure is a refraction or vision test. The doctor may use a computerized refractor or simply shine a light into your eyes.
Answer:
Explanation:
From the question, Harry seem to have forgotten that It's the CO2 (carbondioxide) level not the O2 (oxygen)level that gives rise to the urge to breathe. That is to say that once the CO2 level in the blood is high, the brain will trigger a breathing response, that will cause the person(Harry) to try to gasp for air. Also, Harry is jeopardizing his time and life because Hyperventilation itself reduces the CO2 concentration of the blood to below normal level, this makes the bloods pH value to raise, this in turn causes the constriction of the blood vessels that supply the brain, and prevents the transportation of certain electrolytes necessary for the function of the nervous system.
The nervous system is what i'd say. Are there any options?
Being in a healthy and supportive relationship can actually have a big boost on your happiness level, according to several studies. Being in love has a big effect on your oxytocin level, which promotes bonding and comfort. This is why you love being around your partner, and why just being near them can boost your mood.
Unrequited love can be emotionally painful. It can make us feel deep sadness and it can lead to depression in some people. Emotions can be all over the place and difficult to control, with people describing feeling angry, jealous, ashamed and anxious.
Research has found that poor-quality or unhappy relationships have a higher negative influence on physical and mental health than not being in a relationship. Evidence suggests that men and women treat friendships differently, with women being more likely to have broader, more intimate relationships than men.
