Basic needs

There have been several classifications of the needs of a person. While these classifications vary, they commonly place the basic needs at the lowest level. Basic needs are those that must be satisfied, to guarantee survival. According to Abraham Maslow these include:
If these needs are not met the human body cannot function properly. Maslow considered physiological needs the most important of all. Maslow doesn't clearly say which of these are basic needs.
Absolute poverty has been defined as being unable to satisfy basic needs, or spending most of the income on satisfying those needs.