Email destroys the mind faster than marijuana - study

I have no idea whether this study is either valid or reliable, but I do find it both funny and sad. Sometimes I wish that people in general would stop caring about the statistical deterioration of certain activities on the human body, whether that be smoking of any sort, overeating, wearing a helmet, flying in a plane, or reading email.

The Register:
Email users suffered a 10 per cent drop in IQ scores, more than twice the fall recorded by marijuana users, in a clinical trial of over a thousand participants. Doziness, lethargy and an inability to focus are classic characteristics of a spliffhead, but email users exhibited these particular symptoms to a 'startling' degree, according to Dr Glenn Wilson.

The deterioration in mental capacity was the direct result of the trialists' addiction to technology, researchers discovered.