Sandor Rado was a man who lived a long time ago and was really interested in how people think and feel. He spent a lot of time studying how our brains work and how different things can affect our emotions and behavior.
One of the things that Sandor Rado was really interested in was something called the "psychic skin." This isn't like the skin on your arm or your leg, it's more like an invisible layer that surrounds your whole body and helps protect you from the world around you.
Rado believed that when we're born, our psychic skin isn't fully formed yet. We need to have experiences in life that help us build up this layer, kind of like adding layers to a coat to keep us warm in the winter. He thought that having positive experiences and feeling loved and cared for by our parents can help us build up a stronger psychic skin.
But, on the other hand, if we have negative experiences or feel neglected or mistreated, it can damage our psychic skin and make us feel vulnerable or anxious. Rado believed that this could lead to mental health problems like anxiety, depression, or schizophrenia.
So Sandor Rado was a really important person in the field of psychology because he helped us understand how our experiences and emotions can affect our minds and bodies.