Retrieves, but does not remove, the head of the queue represented by this deque (in other words, the first element of this deque). This method differs from peek only in that it throws an exception if this deque is empty.
A Lack Of Water Is A Lack Of Brain Power. Led by Dr. Caroline Edmonds, researchers in the UK recently conducted a study showing that even mild dehydration has a negative effect on the brain's performance. Drinking water, the researchers found, can improve the brain's ability to complete tasks that require a rapid response.
Research suggests that drinking water before meals can help you eat less. A 2008 Virginia Tech study conducted by Dr. Brenda Davy showed that drinking two glasses of water just prior to eating a meal helped people lose more weight than those who didnât drink water 20 to 30 minutes before the meal.