[scott_karana]

Well, if diet or deodorant causes Parkinson's, that's absolutely meaningful. ;)

The methodology should have been mentioned more in the article, and should be scrutinized, but that doesn't mean it's worthless if she truly diagnosed these people after a (single?) blind experiment.

[ars]

> Well, if diet or deodorant causes Parkinson's, that's absolutely meaningful. ;)

You jest, but there is actually a suggestion that aluminum in sweat blocking deodorant causes neurological problems like Parkinson's and Alzheimer's.

(The evidence for this is not strong however.)

[cortesoft]

This wouldn't explain why she noticed a change in her husband's scent. I would assume he was using the same deodorant before and after the change.