The American Public Health Association (APHA) is endorsing the EPA rule that would strengthen national air quality standards for ozone pollution. Today’s proposal would lower the standard for ground-level ozone, or smog, to 70 parts per billion.

Sitting for long periods of time has emerged as a hot topic in occupational safety, and has been linked to an increased risk of high blood pressure, obesity and heart disease. In a finding disappointing to loyal exercisers, hitting the gym outside work hours does not seem to lessen those risks.

Having a pet might lower your risk of heart disease, according to a new American Heart Association scientific statement. The statement is published online in the association’s journal Circulation. “Pet ownership, particularly dog ownership, is probably associated with a decreased risk of heart disease” said Glenn N. Levine, M.D., professor at Baylor College of Medicine in Houston, Texas, and chair of the committee that wrote the statement after reviewing previous studies of the influence of pets.