In fact whales are able to take in much more usable oxygen than land animals and humans. One estimate states that a whale may be able to store and use up to 90% of the oxygen they inhale. Whales are also able to shut down non essential functions in order to maximize the efficiency of their oxygen usage. Depending on the whales species whales have been known to hold their breath anywhere from 5 minutes up all the way up to 90 minutes during deep dives. Due to their consistent conscious effort to control their breathing whales are referred to as conscious breathers.
Serious side effects have been reported with potassium chloride including: Hyperkalemia. Potassium chloride can lead to dangerously high levels of potassium, which could cause the heart to stop beating. Tell your doctor if you have a history of heart or kidney disease. Digestive tract injury. Potassium chloride can remain in the digestive system for too long, leading to injuries in the digestive tract (stomach, intestines).
Small changes in the level of potassium that is present outside the cells can have severe effects on the heart, nerves, and muscles. Potassium is important to maintain several bodily functions: 1  Muscles need potassium to contract. 2  The heart muscle needs potassium to beat properly and regulate blood pressure.