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The hippocampus plays an important role in learning and memory, and it\u2019s known that it decays at an ever-increasing pace as we age. Of course, there are plenty other things you can do with a dataset like this, and (sponsored by the Templeton Foundation) one of the things they\u2019ve done is to see which religious groups lose it fastest.<\/p>\n

Well, there was no difference in brain rot between those who went to church more often and those who did not, or between those who did a lot of private religious stuff and those who did not.<\/p>\n

But there was a significant difference according to affiliation.<\/p>\n

<\/a>As you can see in the graph, the rot was slowest in mainline Protestants, faster in born-again Protestants and Catholics, and faster still all in those with no religion. The group who fared worst were those who had experienced a \u2018life-changing\u2019 religious event sometime in the past.<\/p>\n

The authors put this down to the stress of being in a minority group. It\u2019s known that high levels of stress can increase the rate of hippocampal rot.<\/p>\n

In this part of the South-Eastern USA, mainline Protestants are the overwhelming majority \u2013 and other evidence<\/a> shows that being in a minority can make life stressful for the non-religious.<\/p>\n

So far so reasonable. However, people with \u2018other\u2019 religious affiliations (presumably mostly Jewish) held onto their grey matter just as well as Mainline protestants. Surely these religious minorities should feel at least as much exclusion as Catholics?<\/p>\n

And no, in case you were wondering. They don\u2019t tell us who had the biggest brains at the start of the experiment!<\/p>\n

$\"ResearchBlogging.org\"$ <\/a><\/span>Owen AD, Hayward RD, Koenig HG, Steffens DC, & Payne ME (2011). Religious factors and hippocampal atrophy in late life. PloS one, 6<\/span> (3) PMID: 21479219<\/a><\/span><\/p>\n

$\"Creative$ <\/a><\/span> This article by Tom Rees<\/b> was first published on Epiphenom<\/a>. It is licensed under Creative Commons<\/a>.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"