Happy Monday! Some interesting coffee stuff that's been happening: A new study demonstrated drinking coffee disrupts the body's natural circadian rhythm, while another study found no link between coffee consumption and an increased risk of atrial fibrillation. Also a Kansas City company made a special blend of coffee for the Pope's U.S. visit, Whole Foods Markets 25¢ coffee is coming to an end, Starbucks adds new Toasted Graham Latte to their menu, and macchiatos can now be found at Dunkin Donuts.