Well.....over the years I've read thousands of scientific papers, studies, trials, and grant research, and I've noticed a few common threads. Pretty much all of them are the result of some scholar attempting to justify his/her existence. In the vast majority of cases, studies have been done, the grant money spent, and a few years later another "scholar" does a study that yields the exact opposite conclusion.
A few examples of such ludicrous efforts are saccharine as an artificial sweetener, banning DDT, and ditto with fluorocarbon aerosol propellants/refrigerants, and mercury-based batteries. The reaction to these "studies" has cost untold billions of dollars, and countless lives.........all for nothing. Yet these same scientific plutocrats expect us to now believe that AGW is real, secondhand smoke will kill you, and swimming pools will cause cancer.
Regarding these "studies":
......Some are financially motivated
......Some are politically motivated
......Some are ego motivated
And a very small fraction are actually motivated by the desire to do truly beneficial research. The key to separating science from pseudoscience is to "follow the money". The Latin expression is "cui bono"......Who benefits??
With the proper amount of funding, a small army of postdoc assistants, access to a big enough computer and lab equipment, I could write a scholarly treatise on the fact that Einstein was wrong, and the speed of light can be exceeded using common household appliances.......it doesn't make it true, but it will exist none the less, and academics around the world will tug on their collective goatees, murmur appropriate kudos, and move along to the next "project".
Particularly when one considers any "study" relating to human health, and its related environments, one must come to grips with the simple fact that........
Life itself is ultimately a "terminal disease"........we will all be much happier if we learn to enjoy what measure of it that we are given, as nothing we can do will alter the eventual outcome.........
doc