Disruption to sleep – sometimes patients sleep more (hypersomnia) or less (insomnia). They may also suffer with poor concentration, unable to stick with a task they usually would, or may find it difficult making decisions (that were previously easy to make). Low mood i.e. an overwhelming feeling of sadness is required for a diagnosis of depression. This is a pronounced feeling of sadness, rather than when healthy individuals report feeling sad, and is characterised by self-descriptions such as “worthless” or feeling “empty”. A loss of pleasure from activities previously enjoyed. In most patients there is a shift in activity levels, either reduced or increased. Many depressed patients experience reduced energy which can make them lethargic, and therefore withdrawing from work, education and/or social life. Disruption to eating – appetite may increase/decrease, leading to more/less eating behaviour and therefore a physical change in weight. The sufferer has negative thoughts, such as negative self-concept (negative self-beliefs), guilt, feelings of helplessness. Patients’ thinking is biased towards focusing on negative aspects of a situation and ignoring the positives Anger can also be experienced and can be directed towards the self or others (and this emotion can result in harmful behaviours towards the self/others). Disruption to sleep – sometimes patients sleep more (hypersomnia) or less (insomnia). They may also suffer with poor concentration, unable to stick with a task they usually would, or may find it difficult making decisions (that were previously easy to make). Low mood i.e. an overwhelming feeling of sadness is required for a diagnosis of depression. This is a pronounced feeling of sadness, rather than when healthy individuals report feeling sad, and is characterised by self-descriptions such as “worthless” or feeling “empty”. A loss of pleasure from activities previously enjoyed. In most patients there is a shift in activity levels, either reduced or increased. Many depressed patients experience reduced energy which can make them lethargic, and therefore withdrawing from work, education and/or social life. Disruption to eating – appetite may increase/decrease, leading to more/less eating behaviour and therefore a physical change in weight. The sufferer has negative thoughts, such as negative self-concept (negative self-beliefs), guilt, feelings of helplessness. Patients’ thinking is biased towards focusing on negative aspects of a situation and ignoring the positives Anger can also be experienced and can be directed towards the self or others (and this emotion can result in harmful behaviours towards the self/others).