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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.
Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.
In 1864, the first barbiturate (barbituric acid) was synthesized.
Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.
![Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer](https://biology-forums.com/gallery/47/medium_274477_04_02_15_12_24_28_205691492.jpeg)
![Structural MRI can be used to provide three-dimensional images of the entire brain. (Courtesy of ...](https://biology-forums.com/gallery/30/medium_548020_05_06_17_10_54_02_30269589.png)