I found this today, [quote]Researchers at the University of Richmond built a little car out of a clear plastic food container, some wheels, and wires, and taught rats how to make it move. ............ they found that the rats that had been taught to drive showed an elevated level of the hormone that counteracts stress[/quote] [url=https://www.caranddriver.com/news/a29563243/rats-driving-cars-stress-study/?utm_medium=social-media&utm_source=facebook&utm_campaign=socialflowFBCD&src=socialflowFBCAD&fbclid=IwAR0yEQ6gqm8WSA_-Vu6glHn36n53p1Xo9mMM5o8zhZPkXbWPc27pPsP-Z8E]Rats Can Drive (Tiny) Cars, and Scientists Find They Actually Like It[/url] Further in the article they say that the rats are given Fruit Loops cereal as a reward. So I'm not sure if this can actually be attributed to the driving or if it is all that sugar giving off the elevated hormone response. Next it will be [b]Driving Causes Diabetes in Research Rats[/b]