<|im_start|>user
Why do people need sleep?<|im_end|>
<|im_start|>assistant
Sleep is necessary for your overall health and well-being.  Sleep is even so important not enough sleep can actually kill you.  Sleep enables the body engage in processes that help rejuvenate the body through better mental and physical performance.  A good night of rest will give you higher energy levels, better mood, clearer thinking and concentration.<|im_end|>
