Articles by Leitzell, Katherine
Kids can get too much, but too little is more likely.
Health-boosting probiotics are all the rage, but shop carefully.
J. Craig Venter, the 'Bad Boy of Science,'
A blood test is vital for those with heart failure, autoimmune disorder, or family with thyroid disease
A mild form of thyroid disease may contribute to other health problems.
The sequencing of a scientist's genome is one new advance toward a world of personalized healthcare.
A leading researcher explains why he set out to learn his entire genetic code.