Homelessness refers to having no home, especially living on the streets. Common causes include bereavement, leaving care homes, financial issues like debt or unemployment, and substance abuse issues. Effects include difficulties getting work, mental health problems like depression, and health risks from lack of shelter, hygiene and sleep. Non-governmental organizations (NGOs) aim to assist specific groups, like the homeless, by investigating human rights violations and providing legal help. The government could do more to help the homeless by providing benefits, shelters, and assistance for those who don't meet legal definitions of homelessness.