A Giraffe's heart, which can weigh up to 24 lb (10 kg), has to generate around double the normal blood pressure for a large mammal in order to maintain blood flow to the brain against gravity.
Background. Bacterial overgrowth syndrome (BOS) is a term that describes clinical manifestations that occur when the normally low number of bacteria that inhabit the stomach, duodenum, jejunum, and proximal ileum significantly increases or becomes overtaken by other pathogens.
Small intestine bacterial overgrowth (SIBO) is a condition in which abnormally large numbers of commensal bacteria are present in the small intestine. SIBO is a common cause of IBS.hen commensal bacteria (oral, small intestine, or large intestine) multiply in the small intestine to the point of overgrowth, IBS is likely. Hydrogen or methane breath testing is the most widely used method of testing for this overgrowth.