Because We Must

We age because we grow.

Why do we age? Since ageing is a near-universal feature of complex organisms, a convincing theory must provide a robust evolutionary explanation for its ubiquity. This theory should be compatible with the physiological evidence that ageing is largely due to deterioration, which is, in principle, reversible through repair. Moreover, this theory should also explain why natural selection has favou...

We age because we grow Hillard

Received Accepted Why do we age? Since ageing is a near-universal feature of complex organisms, a convincing theory must provide a robust evolutionary explanation for its ubiquity. This theory should be compatible with the physiological evidence that ageing is largely due to deterioration, which is, in principle, reversible through repair. Moreover, this theory should also explain why natural s...

We must--and we can--do better.

Must we fear adolescent sexuality?

Editor's Note There is a general fear and anxiety surrounding adolescent sexuality. The question is why? Must we fear adolescent sexuality? This question, the title of the following article, is one that Amy Schalet, PhD, has spent the past decade investigating. It has culminated in a masterful doctoral thesis and a book to be published by the University of Chicago Press in 2006. More specifical...

We age because we grow Hillard S . Kaplan

Received Accepted Why do we age? Since ageing is a near-universal feature of complex organisms, a convincing theory must provide a robust evolutionary explanation for its ubiquity. This theory should be compatible with the physiological evidence that ageing is largely due to deterioration, which is, in principle, reversible through repair. Moreover, this theory should also explain why natural s...