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Information and graphic courtesy of the NY Times
In no particular order, here are three interesting articles for you to read.
Is Junk Food Really Cheaper?
In this NY Times piece, Mark Bittman lays out a case for calling foul on the common claim that eating junk food is cheaper than buying food and eating in. He also describes several reasons why kicking the junk-food habit is so hard (from marketing to engineering to political to cultural).
Butter is Better
This is a nice little summary of a study from the 60s until the late 80s that tracked heart attack incidence in those who ate butter vs. those who ate margarine in varying degrees. The good news for the butter fans: it appears, at least according to this study (and again keeping correlation in mind, as opposed to causation), that butter eaters suffer fewer heart attacks.
Exercise Does the Brain Good
Here's another article on the benefits of exercise on the brain. Yes, the study was done on mice, and yes, the study looked at the impact of aerobic exercise on said mice, so take it for what it's worth.