This is a step forward in learning about the long-term effects of a low-calorie diet on aging, but it's not the whole story. What is striking is the effect on some markers related to longevity.

Evidence from controlled clinical trials such as this is crucial for understanding caloric restriction?s effects on factors affecting aging. These findings indicate that that we need to learn more about effects of maintaining low calorie diets for longer periods.

There's no good reason based on what we know now to use growth hormone as an anti-aging treatment, and there is evidence of definite risks of doing it.

It was a mutually beneficial learning experience. Although I was taking a lot out of the experience, the people I interacted with got a different perspective of what Americans were like. Having a white person stay with them was atypical for that culture. I was very warmly welcomed.

The fun thing about Snapchat is really the surprise and the joy that comes from learning how to use it.

We binge on instant knowledge, but we are learning the hazards, and readers are warier than they used to be of nanosecond-interpretations of Supreme Court decisions.