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Author Question: Maxine tells her roommate, Crystal that she just loves the weather they've been having. Crystal is ... (Read 61 times) |
Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.