Bilirubin in urine can signal liver disease or a bile duct blockage. Learn what causes it, what symptoms to watch for, and what a positive test result means.
Co-occurring disorders happen when mental health and substance use issues overlap. Learn why they develop together and how integrated treatment supports recovery.
Weather changes because of a chain of physical forces—from uneven solar heating to Earth's spin—that interact in ways that make every forecast a best guess.