Zac presentation / Dopamine : 

https://www.the-scientist.com/news-opinion/feel-good-neurons-steer-mice-toward-hydration-boosting-liquids-70244?_hsmi=220218225&_hsenc=p2ANqtz-8MNalE27Ny74OPEOxuGi9BI-p5T_JIJ_lkE8EZwSd1dohzCI5hZVdo8t9C1Lx1g-z6Y_0I7VheniVaxIzlsOX7xhPF7w