Hey, we all know that!
During the holiday season nobody wants to be thinking too much about how bad life can get or how annoying constipation (yeah that too!) can be. Even if this is a known fact, it has been quite interesting finding data from search engines to corroborate that.
Here is a chart for global search trends in Google for keywords that are categorised as ‘health’ search queries:

The red line represents 2008 and the blue line 2009. It is quite clear that people do not search for health related keywords during the Christmas period.







