The Cancer Prevention Network is performing a national research study on lung cancer prevention and the effects of myo-inositol, a natural substance found in grains, seeds, and fruits. Those interested in participating can enroll if they are between 45 and 79 years old, healthy, current or former heavy smokers, and have never had cancer or have been cancer-free for at least three years. Participants in the study will take myo-inositol or a placebo for six months and undergo a number of health examination and screening procedures. To find out more, call 507-538-1887.