When romance lasts beyond the four-year mark, which chemicals give lovers a sense of security, peace, and calm?

Endorphins is the chemical that gives lovers a sense of peace, security, and clam

Answer in 2009 barack obama signed into law the family smoking prevention and tobacco control act, the new law (h.r.   1256) represents the most sweeping action taken to date to reduce what remains the leading preventable cause of death in the united states;

This is d. air quality index. hope this !