It is not possible to be reasonably. The Ancient Greek philosophers passed down the idea that reason is the highest faculty, sitting over more base human capacities like emotion. While this is romantic and appealing (at least in my experience) it is not true.
This is another paradigm shift courtesy of David Hume. Logic cannot motivate us. All it does is tell us how to get what we want. There is always a subtext when we "act rationally", the underlying desire, the rationale, acting that way serves.
Making a choice not to do something fun, but life threatening is only reasonable with a survival instinct. Without that desire to continue living there is no reasonable basis to forego the activity.
Without desire we would never do anything. We would not exist.