An Advanced Health Directive is a way to think about and plan what medical treatment you would like in the event that you cannot make decisions for yourself.
Information about advanced health directives and enduring powers of attorney in Queensland can be found here.
Information for other states can be found by doing an internet search.
Exercise
Skiing – hire snow shoes which are almost as much fun as skiing, but lessen the chance of doing damage if you fall over. (And lessen the chance of falling over.)