Understandably parents want, and need, immediate guidance on how to raise happy and healthy kids, yet rigorous scientific studies of how technology affects the development of young children typically take many years to complete. With technology still in its infancy there is no easy answer to the question of "how much."
Sponsorship is an issue that has reached critical mass for both Academy of Nutrition and Dietetics and American Academy of Pediatrics. When your organizations take money from junk food manufacturers it is embarrassing to your members, detrimental to your reputations and harmful to the health of Americans.
The most fragile period of a child's life is in the first 28 days. In these first days, newborns can succumb to birth asphyxia, as well as other issues related to preterm birth or infection. As a neonatologist, I have a strong interest in reducing infant mortality, particularly neonatal mortality, through research, teaching, and clinical practice.