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Author Question: Overactivity of the anterior pituitary gland results in excessive secretions of growth hormone and ... (Read 94 times) |
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Excessive alcohol use costs the country approximately $235 billion every year.
Asthma cases in Americans are about 75% higher today than they were in 1980.