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.
Based on my own personal experience, here is my list of the Ten Reasons Why Drinking Water Is Good for You: 1  It helps you lose weight. 2  Itâs easier to be hydrated for exercise. 3  Your skin texture improves.  Drinking water helps maintain digestive 1  health. Drinking water helps flush out toxins.