Anxiety

Anxiety Speeds Cellular Aging – Maylin Rodriguez-Paez

We’ve always known that anxiety takes a toll on the human body. Anxious people are more likely to suffer from heart disease and other diseases, for example. To date, however, we haven’t been too sure about anxiety’s effects on aging. Interestingly enough, a new study shows anxiety shortens telomeres, the end caps of DNA. The results were published online in …

blood

Transforming all donated blood into a universal type

Every day, thousands of people need donated blood. But only blood without A- or B-type antigens, such as type O, can be given to all of those in need, and it’s usually in short supply. Now scientists are making strides toward fixing the situation. In ACS’ Journal of the American Chemical Society, they report an efficient way to transform A …

grudge

Holding a Grudge Produces Cortisol and Diminishes Oxytocin

We all know the physiological feeling created when your “blood is boiling” and you ruminate about ways to “get even” with someone who has hurt or betrayed you. Feelings ofanger or revenge activate the “fight-or-flight” stress response of your sympathetic nervous system which causes cortisol levels to spike. The stress response triggered by bitterness and rage also raises blood pressure, reduces the healthy tone of your …