Health for Life: What's Next in Medicine

The pace of change in medical science is breathtaking. Big breakthroughs, like last month's announcement about stem cells derived from genetically engineered adult skin cells, often seem like business as usual. Of course, the essential irony of modern medicine is that we need all the new weapons we can come up with to battle the same relentless old foes. Infertility, cancer, memory loss, obesity, mental illness, even the great octopus that is the American health-care system itself. All of these and more are forever on the minds of the doctors, scientists and researchers featured in the following pages. Their work is our future. Welcome to it.