Which artist, would go for days, without food or sleep,in an attempt to explore the deep, rooted sources of creativity and truth

Leonardo da Vinci

One artist who famously went for days without food or sleep in an attempt to explore the deep, rooted sources of creativity and truth is Marina Abramović. Marina Abramović is a performance artist known for her endurance-based works that push the limits of her physical and mental endurance. One of her most notable performances, "The Artist is Present," involved her sitting silently in a chair at the Museum of Modern Art in New York for a total of 736 hours and 30 minutes, without eating or leaving the chair, while visitors were invited to sit across from her and make eye contact. This performance lasted for three months in 2010 and required significant mental and physical stamina on her part.