person in need if they were in the control group (with Splenda) than if they had replenished their brain glucose supply with the lemonade containing real sugar. This study also supports the model for self-regulation as a strength because it confirms it is a limited resource. Baumeister and colleagues expanded on this and determined the four components to self-regulation. Those include standards of desirable behavior, motivation to meet these standards, monitoring of situations and thoughts that precede breaking standards and willpower. Applications and examples Impulse control in self-regulation involves the separation of our immediate impulses and long-term desires. We can plan, evaluate our actions and refrain from doing things we will regret. Research shows that self-regulation is a strength necessary for emotional well-being. Violation of one's deepest values results in feelings of guilt, which will undermine well-being. The illusion of control involves people overestimating their own ability to control events. Such as, when an event occurs an individual may feel greater a sense of control over the outcome that they demonstrably do not influence. This emphasizes the importance of perception of control over life events. The self-regulated learning is the process of taking control and evaluating one's own learning and behavior. This emphasizes control by the individual who monitors, directs and regulates actions toward goals of information. In goal attainment self-regulation it is generally described in these four components of self-regulation. Standards, which is the desirable behavior. Motivation, to meet the standards. Monitoring, situations and thoughts that precede breaking standards. Willpower, internal strength to control urges. Illness behavior in self-regulation deals with issues of tension that arise between holding on and letting go of important values and goals as those are threatened by disease processes. Also people who have poor self-regulatory skills do not succeed in relationships or cannot hold jobs. Sayette (2004) describes failures in self-regulation as in two categories: under regulation and misregualtion. Under regulation is when people fail to control oneself whereas misregualtion deals with having control but does not bring up the desired goal (Sayette, 2004). Criticisms/challenges One challenge of self-regulation is that researchers often struggle with conceptualizing and operationalizing self-regulation (Carver & Scheier, 1990). The system of self-regulation comprises a complex set of functions, including research cognition, problem solving, decision making and meta cognition. Ego depletion refers to self control or willpower drawing from a limited pool of mental resources. If an individual has low