Lead poisons silently. It creeps into blood and tissues from battery plants, old paint, tainted water. Ravages heart, bones, gut,…

Wormwood looks odd; grey-white, downy, with a scent that’s strangely pleasant and a taste that haunts. Its name repels, but…

Parasites such as tapeworms, roundworms, flukes, pinworms, giardia, hookworms, and Toxoplasma gondii are more common than most people realize. They…