Funny, last week I read that being underweight INCREASED the risk of developing Alzheimers if you are middle aged or old [1]. So often these studies should jus

Funny, last week I read that being underweight INCREASED the risk of developing Alzheimers if you are middle aged or old [1]. So often these studies should just be ignored, or taken with a huge pinch of salt (apparently that is now ok [2] these days too). [1] http://www.alzheimers.org.uk/site/scripts/news_article.php?newsID=2359 http://www.alzheimers.org.uk/site/scripts/news_article.php?n... [2] http://www.economist.com/blogs/economist-explains/2014/04/economist-explains-12 http://www.economist.com/blogs/economist-explains/2014/04/ec...