DEAR DOCTOR K: For years I've heard that chronic stress is bad for your health, but recently I heard something that made me take this seriously: Stress causes our cells to age faster. Is this really true?
DEAR READER: I'll bet you're talking about research showing that stress affects the telomeres. These structures are a part of every cell in our body. And if that's what you're asking about, it really is true. In fact, it's part of a discovery so important that it was honored with the Nobel Prize.