Harvard Health Blog
Microbiome: The first 1,000 days
By: Allan Walker, MD, Contributor In the United States and other developed countries, we have seen a shift over the past several decades in the types of illness people struggle with. Public health campaigns around vaccination, sanitation, and judicious use of antibiotics have largely eradicated many infectious illnesses. As the nature of disease has shifted to inflammatory conditions, we’ve seen a striking increase in allergy and autoimmune conditions such as diabetes, obesity, inflammatory bowel