What Exactly Is HLH?

HLH is an abbreviation for hemophagocytic lymphohistiocytosis. It is a potentially fatal condition that can be classified as either primary or secondary HLH. Primary HLH, also known as “familial” HLH,…

Helicobacter pylori

Infection with Helicobacter pylori (H. pylori) occurs when H. The bacteria H. pylori infects your stomach. This is most common during childhood. H. pylori is a common cause of stomach…

Polysomnography (sleep study)

Polysomnography, also called a sleep study, is a comprehensive test used to diagnose sleep disorders. Polysomnography records your brain waves, the oxygen level in your blood, heart rate and breathing,…