It's hard to imagine that the pills handed to you by the pharmacist in the pristine white lab coat were derived from the darkest, muggiest depths of the rainforest. See more »

Artificial heart valves have been improving the quality of life of people with heart disease for decades. Still, the thought of having a surgeon tinker with your heart can be disconcerting. Do you know how heart valves work and their success rates? See more »

Scientists have developed a new ultrasound transducer to stimulate the growth of teeth and fix asymmetric jaw bones. See how it works. See more »

Hearing aids -- small electronic devices that amplify sound -- can help restore many of the sounds that hearing-impaired people are missing. Find out how hearing aids work in this article. See more »

The top 2008 medical mysteries HowStuffWorks tried to solve go from wisdom teeth to height. Check out the top 2008 medical mysteries and health questions. See more »

Doctors and researchers continually develop new methods to fight against brain damage caused by strokes. But is it possible for lasers to bust up the clots? How can a laser get into your brain, anyway? See more »

Forget iPods. Forget cell phones. This is one piece of technology that some people with bad tickers can't live without. Are you one of them? See more »

Sticks and stones may break your bones, but tarantula venom may prevent you from having a heart attack. Could some of the world's most fearsome creatures be harboring cures for disease? See more »

Inkjet printers might be doing a lot more for doctors than just printing medical forms. This technology combined with microneedles could create a drug patch that might replace hypodermic needles. See more »

While your iPod may bring you hours of enjoyment it, could also cause health problems. Read our list of seven health problems for the modern age. See more »