Why do people take showers if sweat is this wonderful aphrodisiac that drives people crazy? It's because we have bacteria on our skin and when they come into contact with sweat, people start to stink.
If you never clean yourself you have other issue than working out... it's weird that you think that being covered in sweat will change the amount of bacterie you have on your body. And washing yourself will only remove a minimal amount of these.
Since you pulled the illogical, "but there are bacteries mixed in sweat." do you know that your hand and mouth have more bacteries than any other part of your body.
So you're saying that you did never and will never kiss anyone or shake hand with anyone? Since bacteria are dirty?
Studies on a lab don't show the reality of people socializing, ie. no one is smelling your armpits to know if you're a woman or if they're attracted to you, like other animals use pheromones for. The effects are minimal and mostly work for research.
Studies on lab are made to show the reality... All these studies are made to be as close as reality as possible, if it was not the case then no researsh on human sociology would be usefull. Same for all other research. Labs research recreate the environement they are research and constrol it to remove useless factor.
If their aim is to know if and how human are impacted by another's pheromone it's obvious that they would no do their experiment somewhere with car and other things that would ruin every mesurement.
Pheromone like hormone are used by all mammal and a lot of other class, but you're trying to say that human, who are similar to all other mammal species, are different only for this?
Most people who say "human dont produce pheromone" dont show researsh that back their claim, but only that it is because they say so.
If you look at human interaction you'll see that some comportment are similar to those who, for other species, are attributed to pheromones.