ASEA: Research from prestigious lab says, "This stuff really changes the biology of the body."

This is a great discovery. Double blinded cross over studies are a good thing. They test 2 groups 2 times giving them either the placebo first and then the experimental agent or the agent first then the placebo. Either way they collect data from both groups on both treatments. Some things to keep in mind. How look do the effects of ASEA stay in the body? If group A had ASEA and then was later given the Placebo, would there be any residual affects in the system and how much would this impact the results. Would the group that got the placebo first benefit from the week of training before they were given ASEA? With research you have to not only look at the variables of the research but also a bigger picture. What things could really make the results invalid?