Concerns Raised Over Britney Spears' Caffeine Consumption

Britney Spears reportedly consumes large amounts of caffeine drinks like Red Bull, Celsius, coffee, and dandelion tea almost nonstop, sometimes staying awake for three consecutive days. Experts say this is not particularly healthy but not surprising for people with mental illnesses. The information is revealed in a documentary called "TMZ Investigates: Britney Spears: The Price of Freedom," which chronicles her life in the last 1 1/2 years since the conservatorship ended and airs on Fox on Monday at 9 PM ET.