The phrase "to stimulate those hormones" means to activate or increase the production or activity of certain chemicals in our bodies that affect our mood, emotions, and physical well-being. Full definition
[4] A Polish study similarly compared 25 patients with low levels of thyroid stimulating hormone to 25 patients with normal levels. (thyroidnation.com)
It promotes vision power and stimulates some hormones in human body. (fitnesshealthzone.com)
The act of mating stimulates hormone production that triggers ovulation. (thesprucepets.com)