Halloween Musings on Mutations

The word “mutation” may conjure up images of fictional monsters, Marvel X-Men and creatures with non-human characteristics. It’s true that mutations are often associated with disease: something that has gone wrong in the body to produce an oddly shaped body part or sometimes cancer. However, mutations can’t be categorized as “good” or “bad” so easily. … Continue reading Halloween Musings on Mutations

Post-traumatic Stress Disorder: 1 Part Genes, 1 Part Experience

Post-traumatic stress disorder (PTSD) is a debilitating, psychiatric disorder that can occur following exposure to trauma or extreme stress. While anyone who has experienced trauma can develop PTSD, it is most often associated with military veterans. Not everyone who has experienced trauma will develop PTSD—in fact, the majority of people exposed to trauma do not … Continue reading Post-traumatic Stress Disorder: 1 Part Genes, 1 Part Experience

Can Altitude Affect Blood Flow and Your DNA?

An estimated 400 million people—myself included—live at elevations higher than 1,500 meters above sea level. The beautiful scenery, rugged mountains and clean air are part of the appeal to many of us. But interesting changes in the body seem to occur as a response to living at high altitude. Scientists from all over the world are … Continue reading Can Altitude Affect Blood Flow and Your DNA?