̸ ٸ ̴ָ. ˶ ڰ Ŀ Ѳ þ߸ ߿ Ƿθ ؼ Ÿ̴̹. Ƿΰ ӵǴ . Ӱ ̰ ߷ ٸ ƴٴ ȣ ִ.
Ǯ ʴ Ƿ, ִ ü ϴ ̴. Ӿ Ѵ. γ ó Ͽ ϸ Ƿδ 谡 ȴ. ĸ(PBI) ð Ͽ ϴ ο ۷ŸƮ(۷Ž) ǰ ̰ Ƿΰ ִ. ӵ ǰϰ Ѵ. Ű ȰȭǸ鼭 Ĺ ϰ . Ƿΰ ؼҵ ̰ Ű鿪賻к α ̾ ִ. Ӹ ƴ϶ ' Ƿ' ← ϴ . ǷΡ ؼҸ ⺻ Ģ Ƿθ ؼϷ 켱 Ʈ ָؾ Ѵ. 츮 Ʈ û ڱ Ӿ óؾ ϱ Ƿΰ ߵȴ. Ʈ å̳ ϴ ǿ . ڴ ͵ ߿ϴ. (REM) (non-REM) Ѵ. ߿ Ȱ ݺǸ鼭 ־. ð ø ȯ ž Ѵ. 7~9ð ð Ȯ, Ģ , ڱ Ʈ ﰡ Ƿθ ؼϴµ ȴ. Ƿ ؼҿ 缺 ìܾŸ B ü ǷλӸ ƴ϶ Ƿθ ؼϴ ū Ѵ. Ư, Ÿ B1 ' Ÿ'̶ Ī Ű̳ ǰ ش. Ÿ B3 Űý۰ ϴ ߿ Ѵ.Ÿ B Ѵٸ 8(B1B2B3B5B6B7B9B12) ִ Ѵ. B1 B12 ȣ ۿ ϱ ̴.Ȱ ε Ȯغ . Ȱ Ÿ B Ȱ ü ۿ Ƿ ȿ ϴ. Ƽƹ(B1), Ƽƹ(B1), öƼƮ(B2), ǸƮ(B6), ڹ߶(B12) ǥ Ȱ̴. Ȱ ߿ 'Ƽƹ' (BBB, Blood Brain Barrier) ϰ, ʽŰ Ƿ ȿ̴. ǥ Ÿ B 8 ǰ ̷ο οᰡ ִ 캸 Ѵ. ߷ ִ δ ̳ ݸ ִ. ߿ ִ Ÿ B ǰ κ 19 ̻ Ȥ 12 ̻ ϴ. ̱ Բ ְ 8 ̻ õ ִ.
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