There are different levels of intellectual disability: mild, moderate, severe, and profound. You may know someone with Down syndrome, which is the most common genetic cause of intellectual disability. Usually, people with Down syndrome have mild or moderate intellectual disability. Around 85% of people with an intellectual disability have a mild form. Many people with mild intellectual disabilities can go to regular schools, get jobs, and live independent lives. People with moderate intellectual disabilities need more help with planning and organizing their lives. They might need help communicating, by using pictures or other communication tools. They often live with family members or in homes with other people who help them with things like looking after their money. People with severe or profound intellectual disabilities need a lot more support and are not able to live on their own. They may not be able to speak and might communicate using facial expressions or simple gestures. They need help with all basic skills, like dressing, toileting, and eating, and they live with people who help them and look after them at all times.

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