Energy drinks are a booming business. Americans spent 744 million dollars on them in one year alone. They're already banned in several countries, including Denmark, Italy, Norway and Sweden, but in the U.S., the drinks are marketed to our youth. So what's the risk?

The key to curing some diseases may be right in the body's building blocks. We're talking about gene therapy. Take a look at a clinical trial that has doctors taking another look at a disease they once thought was untreatable.

Two new ways to exercise that are easy on the body are producing real results.

More than one million americans require supplemental oxygen to get through the day. The standard device -- called a nasal cannula -- delivers oxygen through the nose. It's bulky, uncomfortable and sometimes embarrassing. Now, there's an easier solution that lets patients breathe and live freely.

A team of scientists in San Fransisco is now studying the H1N1 virus, to see what kind of mutations its making. A possible mutation could trigger bigger problems around the world.

A transplant is the last option for people who suffer from a failing small intestine. The tube helps the body digest and absorb nutrients in food. Without it, many of the organs in the body die. Relying on deceased donors means long waiting lists, so doctors are turning to the living for help.

We talk so much about improving your memory. But what if you want to forget a debilitating fear, a tragic loss, a bad habit? Researchers are working on ways to erase them, but as you can imagine it's a controversial topic.

A good memory can help you ace a test, work the New York Times crossword puzzle, and figure out a complex computer program. But -- can your lifestyle affect your ability to remember? Video

There are nearly one-thousand soldiers, coming home from Iraq and Afghanistan with devastating injuries. Amputations, skin grafts and plastic surgeries are the painful battles these wounded warriors face on the home front. But science is on their side - how researchers are now re-growing body parts.

More than three-million people in the U.S. have epilepsy. 1 in every 100 has experienced an unprovoked seizure. Surgery can eliminate the symptoms, but doctors can rarely get a clear enough image to figure out where to operate. That's all changing with a new helmet-like device that gives doctors a picture-perfect view inside the brain.

Researchers are looking for ways to cut down on hospital stays by monitoring patients from home.

Each of the 100 billion neurons in your brain helps build important information that we call memories. But just how it happens remains a mysterious process.

Girls earn 57-percent of college degrees and are awarded more than half of all academic scholarships for law and med school admissions. But, many young girls are feeling pressure to be perfect and that's a bad thing.

Sickle cell anemia is the most common inherited blood disorder in the united states, affecting as many as 80-thousand people. It causes red-blood cells to be mis-shaped and can be deadly. Now, doctors are using a new intervention that may cure more patients.

We all break a sweat now and then, but nearly 8 million Americans have a problem that makes them sweat so much it's embarrassing. Now a new surgical procedure that can help.