Increasing longevity is forcing a rethink of public policy, individual lifestyles, and private finances. Yet it is crucial not to overreact or grow unduly alarmed about shifting population dynamics.

For decades, biology textbooks taught that DNA’s story could be told with a single image: two elegant strands twisting in a ...

Harry Potter cast then and now: From Daniel Radcliffe to Emma Watson, where they are today What is ethylene and why is it important?