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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.