Anyone who has more than one child knows that toddlers can be very different from each other. In fact, everyone has their own way of reacting to their environment, expressing their emotions, and of relating to others. It depends, among other things, on their temperament. The temperament is present from birth. It is also mainly genetically determined, although it can also be influenced by the family and social environment. A child’s temperament influences his level of activity, attention, anxiety, shyness, irritability, and adaptability to new situations. What is a temperament that has an effect on the intensity of our emotions and our level of sensitivity? In other words, a child’s behavior depends largely on the temperament he inherited.