Hidradenitis suppurativa stems from blocked hair follicles, not bacteria. Learn how genetics, hormones, smoking, and obesity contribute to this skin condition.
Tanker trucks haul more than just fuel. Learn about the many liquids, gases, and dry materials they transport and how they're kept clean between loads.
Niemann-Pick disease is autosomal recessive, meaning two faulty gene copies are needed. Learn how this affects the three types, carriers, and treatment options.
Pulmonary hypertension has several distinct causes, from left heart disease and lung conditions to blood clots and genetic factors. Here's what drives it.