Seriously? This is how many studies are done, unless you can have a highly controlled environment say with breeded rat populations. And yup, wouldn't it be great to keep track of absolutely everyone - and then see how they progress? The problem is most of us are bombarded with a lot of pollution (not just electrical), which all will affect our body's ability to cope with dis-ease and sickness.

I'm not sure where you're getting the sample size of 14,000 ... though different pieces of the study had upwards of 5,000 participants.

This is indeed how many studies are done. It's also why many studies are 1) completely worthless, and 2) impossible to reproduce.

This is simply not valid science. It's not blinded, it's not representative of the population at large (or these would've come out of a randomly selected population), and it's not properly controlled. It's junk science.

So you believe it's completely useless and no value to take 1 common factor, and see what other common factors exist or vary from others who don't have that common factor?

Go read "bad science", then come back and answer your own question. :)

I hope the book itself doesn't make such as generalized claims as some of the sections of the Wikipedia page describing its sections..

I will add it to my read list though, thanks.

I found it very elaborate, actually. It's certainly a very good read :)