The mysterious cause of the mysterious increase of brain diseases

The rise [of brain diseases] has been linked to rises in levels of pesticides, industrial effluents, domestic waste, car exhausts and other pollutants, says a report in the journal Public Health.

This statement reminds me of that batman movie (the first one) where joker made a cocktail of hair, makeup, and food products that would kill people. Only batman was able to figure out the magical combination of products that would be a killer. We don't have a modern day batman,but we do have large studies that suggest links with other random stuff that we come into contact with randomly.

In this study all you have are correlations, and you don't have any good controls. The article said it takes into account that people are living longer, and factors that out. I don't see how that can be done. 50 years ago people did not worry about brain diseases, because they did not live long enough for these supposed pollutants to affect us or did people not get these brain diseases because the pollutants were not around, and it has nothing to do with old age. Of course the study does not mention if people stopped using pesticides, the industries shut down, and people stopped driving. I think that we would stop worrying about brain diseases and start dying a lot younger.

50 years ago we did not worry about these things, and 50 years from now we will not be worrying about these things.

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