Evidence piles up that the body and mind are inseparable. For we all know that you should NOT:
- Wait until you are hungry to buy food.
- Wait until you desire sex to plan protection.
- Wait until your bladder is empty before making life-changing decisions.
In their study, they gave a test were participants were given the option to hold out for a greater monetary gain ($$$) vs getting an immediate lower monetary gain ($). Some participants had full bladders prior to the test and others had empty bladders. The full bladder crowd (who drank 5 glasses of water prior to deciding) tended toward $$$ while those with empty bladders tended toward $.
It seems that when our minds are inhibiting out bladders from peeing they also have a tendency to inhibit our impulsive behavior (admittedly occasionally advantageous).
So like any science knowledge, this information can be used to help us by reminding us to gulp down water prior to some investment decisions. Or this information could be used to harm us: for instance, stores may start making bathrooms more available for shoppers or on-line sites may send subliminal signals telling us to get up and pee before we continue shopping.