1. One More Reason to get a good Night’s Sleep 林柏翰、王慶鈺、趙玴祥、林彤

2. Something about sleep We spend one third of our lifetime sleeping. Galen thought that when we’re awake, our brain juice flows to other part of body; when we sleep, the juice will rush back to our brain and refresh it. When we sleep, it clears your mind, and when you don't sleep, it leaves your mind murky.

3. Recent research of brain Use up a quarter of the body's entire energy supply. Complex network of blood vessels provides nutrients. Elegant design solution(apart from all the other organs)

4. CSF Lymphatic system takes away the wastes. The brain has a large pool of clean, clear fluid called cerebrospinal fluid(CSF). The CSF was pumped back the brain along the outsides of the blood vessels, helping to clear away the waste from the spaces between the brain's cells.

5. CSF The brain is enclosed in a rigid skull and no extra space inside. Blood vessels in brain also function likes lymphatic system. While sleeping, the brain cells shrink, opening up spaces between them, allowing fluid to rush through and clear out the waste. Galen seems to be on the right track.

6. Amyloid-beta and Sleep Sleep traits related to greater amyloid-beta 1. Shorter sleep duration 2. Poor sleep quality

7. Other factors harm our cognitive function Sleep too much(>8 hours per day) Use of hypnotics

8. Alzheimer

9. Alzheimer’s Disease It's the most common cause of dementia.

10. Alzheimer’s Disease Has something to do with sleep.

11. Other benefits of sleeping enough

12. 7 reasons to get more sleep Better health Better sex lifesex Less pain Lower risk of injury Better mood Better weight controlweight control Better memory

13. Thanks for your attention!