Brazil's medical cannabis program is set to expand, with cultivation legalized for the first time in Latin America's largest country. 

Studying twins is key to understanding the heritability of lifespanHalfpoint/iStockphoto/Getty Images In wealthy, relatively safe countries, how long people live now probably depends just as much on the genetic variants they inherit from their parents as on their environment and lifestyles. That’s the implication of a study reanalysing data from research in twins in Denmark...

District 9 Councilwoman Appointed to Serve on National League of Cities Energy, Environment and Natural Resources Committee