Interesting but doesn't explain the difference between the brain aspect ratios of men, women, gay men, and gay women, unless the parasite causes the brain structure to physically change, not saying it's not possibile

a neuroscience study showed you could tell which was which by a simple mri scan of brain, and the ratios were exact for each type, 1000 person study said 47.5% women, 47.5% men, and 5% for the other two equally and consistently

it was a blind study of 1000 mri scans