Buildings used to breathe. It was inevitable and somewhat helpful, but it can make it more expensive to heat and cool those spaces with common central heating and cooling systems. When the oil embargo of the 1970s came along, building practices shifted to focus on more hermetically sealed buildings as a means to save energy….

Everyday levels of a pregnant woman’s exposure to mixtures of endocrine-disrupting chemicals like bisphenol A (BPA), phthalates, and per- and polyfluoroalkyl substances (PFAS), put their child at an increased risk of delayed language development, according to new research. Because hormones regulate much of human development, endocrine-disrupting chemicals—which disrupt hormone activity—can create developmental problems. In the…