Authors Raymond P. Daugherty and Carl Leukefeld argue for replacing
the youth-based, `zero tolerance' approach to substance abuse
prevention that has been dominant in the field over the past two
decades. Their dynamic alternative is the Lifestyle Risk Reduction
Model, which revises standard prevention strategies to make them
relevant throughout the entire life span. Features of this
revolutionary new paradigm include Five Principles of Lifestyle Risk
Reduction (LRR), Five Conditions of Effective LRR, and the LLR Formulas.