The current changed title is overbroad, it's certainly not shown by this study that experimenter sex is an issue in all animal research. I would simply suggest

The current changed title is overbroad, it's certainly not shown by this study that experimenter sex is an issue in all animal research. I would simply suggest the title of the paper itself: "Olfactory exposure to males, including men, causes stress and related analgesia in rodents". It's fairly straightforward, and not as jargon-filled as scientific titles go.