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  1. Health & Medicine

    Cycling and surgery have similar effect

    Among people with chest pain because of clogged heart arteries, regular exercise on a stationary bike reduced symptoms better than surgery did.

    By Damaris Christensen
  2. Health & Medicine

    A hot new therapy?

    Spending time in a sauna improves heart function in people with chronic heart failure.

    By Damaris Christensen
  3. Planetary Science

    Seeing Saturn

    After 5 years of interplanetary travel, the Saturn-bound Cassini spacecraft has taken its first picture of the ringed planet.

    By Ron Cowen
  4. Health & Medicine

    Protein may signal heart problems

    A protein already linked to inflammation is also a strong predictor of heart problems.