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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.

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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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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.

Steps in sequencing a polypeptide Steps in sequencing a polypeptide
Three bonds separate sequential α carbons in a polypeptide chain Three bonds separate sequential α carbons in a polypeptide chain
Action Potentials and Contractions of a Muscle Fiber Action Potentials and Contractions of a Muscle Fiber
Relationships of DNA to mRNA to polypeptide chain Relationships of DNA to mRNA to polypeptide chain
Avocados are a good source of pantothenic acid, dietary fiber, vitamin K Avocados are a good source of pantothenic acid, dietary fiber, vitamin K
Structure of polypeptide chains Structure of polypeptide chains
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

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