Other forms: privations
If you're lacking the basic necessities of life — food, water, political freedom, and so on — you're suffering from privation.
Privation has become a rather old-fashioned word, and these days the word is often used with irony: present day privations are usually of the order of not having wireless Internet or video games. It's interesting to compare privation with the similar word deprivation, which is used more commonly now. Deprivation usually suggests that someone or something has actually caused the privation.