Some headache types tend to run in families. So an accurate and complete family medical history can often reveal causes for your headache. Be sure you discuss any family history of headaches or substance-abuse problems with your doctor. You may not know some important facts about your family's medical history, so ask a close relative to help you gather the information you need.
A research group in Atlanta has developed an AIDS vaccine that shows 96 percent effectiveness in non-human, pre-clinical trials. It's already in Phase I human trials and could be on the market within four years.
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