A commission led by U.S. Health Secretary Robert F. Kennedy Jr. on Thursday issued a report that said processed food, chemicals, stress and overprescription of medications and vaccines may be factors behind chronic illness in American children.

The White House blamed exposure to environmental toxins, poor nutrition and increased screen time for a decline in Americans’ life expectancy Thursday, in a major administration report that also casts doubt on the current vaccine schedule and medications deemed safe by mainstream medicine.

Poor diet, environmental toxins, unhealthy habits and pharmaceuticals are contributing to a national rise in chronic illnesses, particularly among children, top Trump officials said in a Thursday report that lays the groundwork for a ‘Make America Healthy Again’ overhaul of government policy.