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.
Drinking water also helps our bodies to burn the fat in our bodies, and so our weight can be reduced. Some people say that drinking 15 liters of water in a day can help in losing our weight drastically. By the loss of our fat in our bodies, we can be healthier because some diseases caused by the fat will be avoided.