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Author Question: According to the variance sum law, the variance of the difference of two independent variables is ... (Read 63 times) |
The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.