is smoking weed more harmful than cigarettes Marijuana may be even safer previously thought, researchers say The science is clear: Marijuana

Unfortunately, this often means dismissing highly qualified, valuable employees who are difficult to replace

The Science Behind Invisalign: Customized Treatment for Every Smile At the core of Invisaligns effectiveness lies its personalized approach

Keep your distance: If you encounter smoke outdoors, move away from the source and upwind when possible

With files from CBC's Christine Birak

Artists: Loriel Beltran, Myrlande Constant, Jose Delgado Zuniga, Jen DeNike, Tomm El-Saieh, Viktor El-Saieh, Hunter Osking, Betty McGhee, Chemu Ngok, Zelmira Rizo-Patron, Kyle Thurman, Georgia Sagri, Constanza Schaffner, Diego Singh, Frantz Zephirin