In those cases, the spread between the bid & ask goes to the market maker as compensation for making a market in a stock. For a liquid stock that is easy for the market maker to turn around and buy/sell to somebody else, the spread is small (narrow).
In cerebral hypoxia, sometimes only the oxygen supply is interrupted. Brain cells are extremely sensitive to a lack of oxygen. Some brain cells start dying less than 5 minutes after their oxygen supply disappears. As a result, brain hypoxia can rapidly cause severe brain damage or death.
View All. The length of time Dexedrine (dextroamphetamine), a commonly prescribed medicine for attention deficit hyperactivity disorder (ADHD), remains in your body can vary from one day to three months. The period may depend on each individual's metabolism, body mass, age, hydration level, physical activity, and health conditions.