Diet and the evolution of the brain ¨ê

137-4-646
They may, however, be swimming against the tide. The popularity of omega-6-rich foods based on cheap vegetable oils will be difficult to reverse. Indeed, if another of Dr Hibbeln¡¯s studies proves true of people as well as rodents, it may be self-fulfilling. In this experiment he fed rats diets that were identical except that in one case 8% of the calories came from linoleic acid (an omega-6 fatty acid) while in the other that value was 1%. These percentages reflect the shift in the proportion of omega-6s in the American diet between 1909 and the early 21st century.
In the 8% diet, levels of rat obesity doubled. It turns out that in rats (and also in humans) linoleic acid is converted into molecules called endocannabinoids that trigger appetite. Those who eat omega-6s, in other words, want to eat more food. And since, in the human case, omega-6-rich food is much cheaper than omega-3-rich food, that is what they are likely to consume.
The way out of this vicious circle is not obvious. Eating fish is all very well, but the oceans are under enough pressure as it is. Biotechnology might be brought to bear—creating genetically modified crops such as soyabeans with higher levels of DHA. Until that day, though, the best advice is probably that which was posted over the oracle at Delphi: ¡°Nothing in excess¡±.

A. ¾îÈÖ
tide Á¶·ù, Ãß¼¼, °æÇâ, ù¦ðÍ(dzÁ¶). reverse ¹Ý´ë·Î ÇÏ´Ù, ¿ªÀ¸·Î µ¹¸®´Ù.
rodent àåöÍ×¾(¼³Ä¡·ù). self-fulfilling ½º½º·ÎÀÇ ÈûÀ¸·Î ¸ñÀûÀ» ´Þ¼ºÇÏ´Â.
identical µ¿ÀÏÇÑ. value (¼öÇÐÀÇ)°ª, â¦ö·(¼öÄ¡), ±Ý¾×. obesity ºñ¸¸.
convert ܨüµ(º¯È¯)½ÃŰ´Ù. trigger ÀÏÀ¸Å°´Ù, ¹æ¾Æ¼è¸¦ ´ç±â´Ù.
appetite ½Ä¿å. vicious ºÎµµ´öÇÑ, ³ª»Û. obvious ¸í¹éÇÑ.
pressure °íÅë, °í³­, ¾Ð·Â. biotechnology »ý¸í°øÇÐ.
genetically modified crops À¯ÀüÀÚº¯Çü ³óÀÛ¹°.
soyabean ´ëµÎ. oracle ãêöþ(½ÅŹ), Çϳª´ÔÀÇ ¸»¾¸, ±ÇÀ§ ÀÖ´Â ¸».
Delphi ͯÓÛ ±×¸®½ºÀÇ Apollo ãêîü(½ÅÀü)ÀÌ ÀÖ´ø µµ½Ã.

B. ÓÞëù(´ëÀÇ)
¼­¸í ÇÐÀÚµéÀº ½Ã´ëÀÇ Á¶·ù¿¡ æ½ú¼(¿ªÇà)Çϰí ÀÖ´ÂÁöµµ ¸ð¸¥´Ù. Àú·ÅÇÑ ½Ä¹°¼º ±â¸§¿¡ ¹ÙÅÁÀ» µÐ ¿À¸Þ°¡-6 ½ÄǰÀÇ Àα⸦ °Å½º¸£±â´Â ¾î·Æ´Ù. Á¤¸»·Î Dr HibbelnÀÇ ¶Ç ÇϳªÀÇ ¿¬±¸°¡ ¼³Ä¡·ù¿¡´Â ¹°·Ð »ç¶÷¿¡°Ôµµ ÇØ´çµÈ´Ù´Â °ÍÀÌ Áõ¸íµÇ¸é ±×°ÍÀº ½º½º·Î ¸ñÀûÀ» ´Þ¼ºÇÏ°Ô µÉ °ÍÀÌ´Ù. ÀÌ ½ÇÇè¿¡¼­ ±×´Â ÇÑ ¹«¸®ÀÇ Áã¿¡°Ô´Â Ä®·Î¸®ÀÇ 8%°¡ ¸®³îß«(»ê)¿¡¼­ ³ª¿À´Â ¸ÔÀ̸¦ ÁÖ°í ¹Ý¸é¿¡ ´Ù¸¥ ÇÑ ¹«¸®¿¡°Ô´Â 1%¸¸ ¸®³î»ê¿¡¼­ ³ª¿Â ¸ÔÀ̸¦ ÁÖ´Â °Í ¿Ü¿¡´Â µ¿ÀÏÇÑ ¸ÔÀ̸¦ Áã¿¡°Ô ÁÖ¾ú´Ù. ÀÌ·¯ÇÑ ¹éºÐÀ²Àº 1909³â°ú 21¼¼±â »çÀÌ¿¡ ¹Ì±¹ÀÎ ½Ä´Ü¿¡ Æ÷ÇÔµÈ ¿À¸Þ°¡-6 º¯È­ÀÇ ºñÀ²À» ¹Ý¿µÇÑ °ÍÀÌ´Ù.
8%½Ä´Ü¿¡¼­ ÁãÀÇ ºñ¸¸Á¤µµ´Â µÎ ¹è°¡ µÇ¾ú´Ù. Áã ¼Ó¿¡¼­(Àΰ£µµ ¸¶Âù°¡Áö) ¸®³î»êÀº ½Ä¿åÀ» Ã˹߽ÃŰ´Â endocannabinoids ºÐÀÚ·Î º¯È¯µÈ´Ù´Â °ÍÀÌ ÆÇ¸íµÇ¾ú´Ù. ´Þ¸®¸»Çؼ­ ¿À¸Þ°¡-6À» ¸ÔÀº Áã´Â ´õ ¸¹Àº ¸ÔÀ̸¦ ¿øÇÏ°Ô µÈ´Ù. ±×¸®°í Àΰ£ÀÇ °æ¿ì¿¡´Â ¿À¸Þ°¡-6ÀÌ ¸¹ÀÌ ÇÔÀ¯µÈ ½ÄǰÀº ¿À¸Þ°¡-3ÀÌ ÇÔÀ¯µÈ ½Äǰº¸´Ù´Â ÈξÀ ´õ Àú·ÅÇϱ⠶§¹®¿¡ »ç¶÷µéÀÌ ¿À¸Þ°¡-6 ½ÄǰÀ» ´õ ¸¹ÀÌ ¼ÒºñÇÏ°Ô µÈ´Ù.
ÀÌ ¾Ç¼øÈ¯¿¡¼­ ¹þ¾î³ª´Â ¹æ¹ýÀº ¸íÈ®ÇÏÁö°¡ ¾Ê´Ù. »ý¼±À» ¸Ô´Â °ÍÀº ÁÁÀº ÀÏÀÌÁö¸¸ ¹Ù´Ù´Â Áö±Ý ³Ê¹« ¸¹ÀÌ °íÅëÀ» ¹Þ°í ÀÖ´Ù. À̰ÍÀ» ±Øº¹Çϱâ À§ÇÏ¿© »ý¸í°øÇÐÀ» µµÀÔÇÏ¿© º¸´Ù ³ôÀº ¼öÁØÀÇ DHA¸¦ ÇÔÀ¯ Çϰí ÀÖ´Â Äá °°Àº À¯ÀüÀÚº¯Çü ÀÛ¹°À» °³¹ßÇÒ ¼öµµ ÀÖÀ» °ÍÀÌ´Ù. ±×·¯³ª ±×·± ³¯ÀÌ ¿Ã ¶§±îÁö ÃÖ¼±ÀÇ ¹æÃ¥Àº DelphiÀÇ ½ÅŹ¿¡ ÀÖ´Â ¡°¾î¶² °Íµµ °úÇÏÁö ¸»¶ó¡±ÀÏ °ÍÀÌ´Ù.
  • Æ®À§ÅÍ
  • ÆäÀ̽ººÏ
  • ¡èÀ§·Î
Copyright ¨Ï Á¶°©Á¦´åÄÄ - ¹«´ÜÀüÀç ¹× Àç¹èÆ÷ ±ÝÁö
´ñ±Û´Þ±â ´ñ±Û¾²±â ÁÖÀÇ»çÇ×

´ñ±Û´Þ±â´Â ·Î±×ÀÎÈÄ »ç¿ëÇÏ½Ç ¼ö ÀÖÀ¸¸ç, ³»¿ëÀº 100ÀÚ À̳»·Î Àû¾îÁֽʽÿÀ. ±¤°í, ¿å¼³, ºñ¼Ó¾î, ÀνŰø°Ý°ú ÇØ´ç ±Û°ú °ü·Ã ¾ø´Â ±ÛÀº »çÀüÅ뺸¾øÀÌ »èÁ¦µË´Ï´Ù.

PC ¹öÀü