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.
1 Small intestine bacterial overgrowth is often associated with other underlying illnesses. 2  Symptoms involving the intestine are non-specific in the early stages and include indigestion, diarrhea, abdominal pain, and bloating.he normal bacteria (flora) of the gut, perform important functions, helping to digest certain vitamins like folic acid and vitamin K, and they protect the intestine from being invaded by disease causing bacteria. However, if the normal function of the intestine is compromised, bacterial overgrowth may occur.