Self-neglect is a behavioral condition in which an individual neglects to attend to their basic needs, such as personal hygiene, appropriate clothing, feeding, or tending appropriately to any medical conditions they have. More generally, any lack of self-care in terms of personal health, hygiene and living conditions can be referred to as self-neglect. Extreme self-neglect can be known as Diogenes syndrome. There are two types of self-neglect: intentional (active), and non-intentional (passive). Intentional self-neglect occurs when a person makes a conscious choice to engage in self-neglect. Non-intentional self-neglect occurs as a result of health-related conditions that contribute to the risk of developing self-neglect. Different societies and cultures can have different beliefs regarding acceptable living standards, making self-neglect a serious and complex problem requiring clinical, social, and ethical decisions in its management and treatment. Without sufficient personal hygiene, sores can develop and minor wounds may become infected. Existing health problems may be exacerbated, due to insufficient attention being paid to them by the individual. Neglect of personal hygiene may mean that the person suffers social difficulties and isolation. Self-neglect can also lead to the individual having a general reduction in attempts to maintain a healthy lifestyle, with increased smoking, drug misuse or lack of exercise. Any mental causes of the self-neglect may also lead to the individual refusing offers of help from medical or adult social services. Self-neglect can be as a result of brain injury, dementia or mental illness. It can be a result of any mental or physical illness which has an effect on the person's physical abilities, energy levels, attention, organizational skills or motivation. A decrease in motivation can also be a side effect of psychiatric medications, putting those who require them at a higher risk of self-neglect than might be caused by mental illness alone.