factors (gender, diet, smoking, alcohol, exercise) that, because there is a statistical distribution of ages at which these genes exert their influence on morbidity and mortality , the effects of selection are in fact non-negligible." Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2848859/ 12 Apr 2010 Trialing Stem Cells to Heal Heart Damage Permalink | View Comments