There is now absolute evidence of a direct connection between the stress hormones and growth factors in bacteria\microbes.
They pick up our signals, and that triggers them to produce chemicals, and growth.
The military have picked up on this a while ago, and who knows what they created.
Suffice to say, microbes can produce chemical peptides that can also control mood, behavior, aggression, sex drive, decision making, immune functions,.....
Engineered microbes are even better at it---get your tinfoil hats on folks!
But kidding aside, this is very real. Shroom