• Doctors and scientists are using a blood plasma test to study longevity. • The test measures proteins and can tell you about your organ health. • This field of proteomics could one day help detect diseases like cancer before they start.

Should you have that second cup of coffee? How about a little wine with dinner? And, is yogurt really your superfood?

Scientists are getting closer to offering consumers a blood test that could help people make daily decisions about how to eat, drink, and sleep that are more perfectly tailored to their unique biology.

The forthcoming tests could also help shape what are arguably far more important health decisions, assessing whether your brain is aging too fast, if your kidneys are OK, or if that supplement or drug you're taking is actually doing a

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