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.
The slight increase in metabolism that occurs for a few minutes after drinking water may be due to the body working to heat the water you drink. Although drinking water may not increase your metabolism directly, drinking more water increases blood volume in the body. This gets more oxygen and nutrients to cells and carries out more waste. These processes help increase the efficiency with which the bodyâs cells work.