According to subsection 5D(1), disease means:
- any physical or mental ailment, disorder, defect or morbid condition (whether of sudden onset or gradual development), or
- the recurrence of such an ailment, disorder, defect or morbid condition,
but does not include:
- the aggravation of such an ailment, disorder, defect or morbid condition, or
- a temporary departure from:
the normal physiological state, or
the accepted ranges of physiological or biochemical measures,
that results from normal physiological stress (for example, the effect of exercise on blood pressure) or the temporary effect of extraneous agents (for example, alcohol on blood cholesterol levels).