Apparently we are turning into a planet of zombies. The Guardian reports:

The distractions of constant emails, text and phone messages are a greater threat to IQ and concentration than taking cannabis, according to a survey of befuddled volunteers.
Doziness, lethargy and an increasing inability to focus reached “startling” levels in the trials by 1,100 people, who also demonstrated that emails in particular have an addictive, drug-like grip.

This is a very real and widespread phenomenon,” said Glenn Wilson, a psychiatrist from King’s College, London University, who carried out 80 clinical trials for TNS research, commissioned by the IT firm Hewlett Packard. The average IQ loss was measured at 10 points, more than double the four point mean fall found in studies of cannabis users.

So I guess this weekend, all of us should take time off e-mail and mobiles, and sit around the beach and pot to compensate:)