This is our German Shorthaired Pointer, Fritz. He is 2 years old and is the perfect dog for us. Fritz is loyal, obedient, respectful and active! The high point of Fritz's day is the long run we take every afternoon.
Scientists say they may have found the reason why we need to sleep. Photograph: Corbis Scientists in the US claim to have a new explanation for why we sleep: in the hours spent slumbering, a rubbish disposal service swings into action that cleans up waste in the brain. Through a series of experiments on mice, the researchers showed that during sleep, cerebral spinal fluid is pumped around the brain, and flushes out waste products like a biological dishwasher.
It's harder to sleep in these times. Articles are written every day about the subject. Your reason for tossing and turning at night may be different from mine. But the result is the same.We're foggy and tired the next day.uring sleep, the body has a chance to clear adenosine from the system, and, as a result, we feel more alert when we wake. One of the most recent and compelling explanations for why we sleep is based on findings that sleep is correlated to changes in the structure and organization of the brain.