The idea of a clock counting down to your death is the stuff that "Twilight Zone" episodes are made of. And it's not exactly comforting. But when it's your cells that have a ticking timer above their heads, it could actually mean better health — and a longer life — for you. Here's how they figured out how to read that countdown clock.
A Secret in a Nuclear Envelope
Counting Down to Health
Making Living Cells Easier To See
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