After this period, the patient is in a new steady state in which further sodium and water losses do not occur. However, in many patients with diuretic-induced hyponatremia, the disorder first appears after many months of uncomplicated thiazide therapy [5,12].
Out of more than 480 shark species, only three are responsible for a double-digit number of fatal, unprovoked attacks on humans: the great white, tiger, and bull; however, the oceanic whitetip has probably killed many more castaways, not recorded in the statistics.
A few things that could attract a shark to a human is blood (which can also cause a feeding frenzy) and a human paddling out to catch some waves (surfing) looks like a seal so that can also attract sharks, however sharks have a keen sense of smell so it is more likely that blood will attract sharks.