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 most in mainstream medicine.

A commission led by U.S. Health and Human Services Secretary Robert F. Kennedy Jr. and tasked by President Donald Trump with investigating chronic illness is set to deliver a report outlining its findings on Thursday.