By addressing issues every day, and providing access to care when patients need it, unnecessary emergency department visits are minimized and overall health is improved. PHN is a partnership between Geisinger hospitals, its primary care network, and its insurer, Geisinger Health Plan (GHP).
We can't live on air and sunshine alone. The human body needs food and water to survive. A human can go for more than three weeks without food (Mahatma Gandhi survived 21 days of complete starvation), but water is a different story. At least 60% of the adult body is made of it and every living cell in the body needs it to keep functioning.
Quick Answer. An elderly person can live approximately three weeks without food, according to Dina Spector for Business Insider. However, there are additional factors to consider when determining how long a person can survive without food. These factors include age, weight and hydration levels.