The findings do not shake the conviction of Debra Weese-Mayer, MD, that there is a genetic component to SIDS. ???There are so many families who do everything right in terms of what we know to be modifiable risk factors: breastfeeding, no smoking involved, back to sleep, firm bedding, cribs that are so clear of blankets and other things that you would hardly know a child lived there,??? said Dr. Weese-