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Author Question: Ray has trouble making friends ever since he went from grade school to junior high. Now he is an ... (Read 309 times) |
The familiar sounds of your heart are made by the heart's valves as they open and close.
Your heart beats over 36 million times a year.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.