Many people use white as a recall of their youth and innocence. It reminds them of a time when their lives were easier and less complicated.
White is used in many medical practices such as dental surgeries and doctors' rooms as an indication of cleanliness and efficiency; however it also can give the feeling of sterility and coldness of emotions and may lead patients to think the doctor or dentist won't relate to them on an emotional and personal level. It can be too clinical and sterile.
Too much white can cause feelings of isolation and emptiness; it can be too pristine and immaculate, making you feel as though you can't make a move for fear of upsetting it or creating a mess.