This research deals with three relatively recent variables in psychological literature. They include variable of life skills which can be defined as abilities to carry out a consensual and positive behavior that enables an individual to effectively dealing with the requirements and challenges of the daily life. The second variable is brain dominance which means the tendency of an individual to rely more on one of the brain part than the other parts. While the third variable is the suggestibility that means the tendency of an individual to accept the ideas, opinions and beliefs from the others without discussion or inspection in order to reduce the intensity of the cognitive dissonance. The aim of this research is to identify the life skills, the brain dominance and suggestibility in University students and the relationships among them. To achieve the aims of the study, the researchers have designed a scale of the life skills by depending on the classification of (World Health Organization). The researchers have verified of the psychometric properties of the scale. Eventually, the scale consists of (68) items, which are valid for measuring the life skills. The researchers have also adopted the scale of brain dominance of (Lenid Herman) in its original English edition which involves (120) questions. They have achieved the validity of the translation, as they have built a scale of the suggestibility by depending on the theory of cognitive dissonance of (Festinger) and verified the psychometric properties of the scale. However, the scale ultimately consists of (24) items, which are valid for measuring the suggestibility. Then, the three above scales are all applied altogether on the basic sample of the research which includes (748) male and female students from Diyala University for the academic year of (2012-2013). The research sample has been randomly selected. Finally, after processing the data statistically by using the method of (Calculating the Mean, Standard Deviation, T-Test for one sample, Dual Variance Analysis, Person Correlation Coefficient, and Multiple Regressive Analysis) and we have reached to the following outcomes: 1) Students have fairly good level of the life skills. 2) University students have the dominance of the left side of the brain (The left hemisphere) wherever section (A) has occupied the first rank in the in terms of the brain dominance and then followed successively by (B,C, D) sections. 3) Suggestibility is quite low among university students. 4) There is a positive correlation between the life skills and the divisions of the brain dominance. 5) There is a negative correlation between the life skills and suggestibility. 6) The correlation among the divisions of the brain dominance (A,B,D) and suggestibility are not statistically significant , whereas the correlation between the division (c) and suggestibility is a positive correlation. (Published Abstract)