Spring water does contain magnesium, but levels vary widely by source. Learn how much to expect, how it compares to other waters, and whether it matters for your health.
Pregnancy Category C meant animal studies showed risk but human data was lacking. Learn what it meant, why it was so common, and how the FDA updated its system.
Stem cell hair treatments show real promise for some types of hair loss, but results vary. Here's what the science actually supports, what it costs, and who tends to benefit most.