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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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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.

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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Bay (left) and chestnut (sometimes called "sorrel") are two of the most common coat colors Bay (left) and chestnut (sometimes called "sorrel") are two of the most common coat colors
Neurons Neurons
The discovery of the retinohypothalamic tracts. Neurons from each retina project to both ... The discovery of the retinohypothalamic tracts. Neurons from each retina project to both ...
Corbel Vault, Interior of Tholos, The So-called Treasury of Atreus Corbel Vault, Interior of Tholos, The So-called Treasury of Atreus
Drawing of neurons in a rabbit's hippocampus Drawing of neurons in a rabbit's hippocampus
Energy flows from the environment into living organisms, then back to the environment Energy flows from the environment into living organisms, then back to the environment
Video: Language Areas Animation

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