Human needs are divided into five types: physiological needs, security needs, social needs, esteem needs, and self-actualization needs.
Physiological needs are what we need to survive as living organisms. The essentials for human survival are food, water, clothing, sleep and shelter. However, many people cannot meet these basic needs without the help of charitable groups. For example, a reliable place to eat may be all a person needs to focus on more important priorities.
To learn more about define basic needs use this link . Perhaps this is exactly what you wanted to know in order to help others.