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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.
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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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Medication errors are three times higher among children and infants than with adults.
Noll's DNase-I digestion experiment, which verified the beads-on-a-string model of DNA compacti
Continuous, Absorption Line, and Emission Line Spectra
Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu
The Taylor–Woods–Hughes experiment
The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ...
The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ...