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Author Question: A neurological disorder caused by the brain's inability to properly regulate sleep, which results in ... (Read 66 times) |
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.