Hilary Ryder is a second-year resident in internal medicine at Dartmouth Hitchcock. That means, on most rotations, spending every fourth day on call. And that means at least 24 hours of nearly nonstop activity. Dartmouth Medicine shadowed Ryder for a day to show what life is like for a resident.

Mary Hitchcock Hospital's nursing school closed its doors 25 years ago. But—as alumni and administrators at DHMC attest—nursing education and practice are thriving today at Hitchcock.

There's no lab test to diagnose clinical depression, no scan to define its ravages. But it's as real as a tumor, as devastating as a stroke. Just how real, how devastating, is evident from this saga of one patient's struggle with seemingly intractable internal demons.