Health & Science July 24, 2023 1:02 pm What is aspartame and are there risks associated with it? The artificial sweetener is common in diet sodas and other low-calorie sweet foods. US & World Videos 1:46 Heat waves getting hotter, longer, and more frequent because of climate change 1:03 More than 2,000 people buried alive in Papua New Guinea landslide, Government says 45:40 How this surgeon wants to reinvent the American urgent care center 1:56 Mike Tyson ‘doing great' after health scare on flight 2:18 Remembering basketball legend and San Diego native Bill Walton