Only those of us who have experienced the terror of threatened captivity may truly appreciate the heroes that three Cleveland women became as they seized the chance of escape.

As a 9-year-old, Lesia Cartelli was severely burned in an accident. Today, she runs a healing retreat for girls with burn injuries like hers.

Evan and Eric Edwards have life-threatening allergies and wanted to develop a better way to deliver epinephrine. Their vision started when the brothers were high school seniors and became a reality soon afterward.

Before the term vaccination was coined, millions died each year from infectious diseases. Then these nine scientists became superheroes.

Chronic pain conditions now affect more than 116 million Americans, according to the Institute of Medicine, a figure that dwarfs the number of people who suffer from diabetes, coronary heart disease/stroke and cancer combined.

Earlier this week we saw a breakthrough in this field: A group of researchers published in the journal Cell proof that they had created embryonic stem cells through cloning.

After his gastric bypass surgery, Dale Benzine's life changed drastically. It wasn't easy, he says, but it was definitely worth it.

Being outside of her comfort zone has helped Rae Timme conquer her fears and self-doubt as she trains for her first triathlon.

Less cancer treatment may be better, and being in good physical shape may help keep cancer away, according to the latest research being presented at the largest convergence of cancer experts worldwide.

Zach Sobiech, 18, passed away on Monday, surrounded by loved ones. His song, "Clouds," has more than 3 million views on YouTube.