Understanding Intellectual & Developmental Disabilities (IDDs)
Intellectual and Developmental Disabilities (IDDs) are a group of conditions that affect learning, communication, daily living skills, and overall development. They begin during the developmental period and can impact people in different ways. Every person with an IDD has unique strengths, abilities, and support needs.
Here’s a simple overview of some of the most common IDDs:
đź’™ Autism Spectrum Disorder (ASD)
A developmental disability that affects communication, social interaction, and behavior. People with ASD may communicate or learn differently, and many have incredible strengths in areas such as memory, problem‑solving, and creativity.
ASD affects about 1 in 6 children ages 3–17 in the U.S.
đź’› Down Syndrome
A genetic condition caused by an extra copy of chromosome 21. It often affects physical development, learning, and health, but individuals with Down syndrome also bring strong social and emotional skills to their communities.
đź’š Cerebral Palsy (CP)
A group of disorders that affect movement, muscle tone, and posture. CP is caused by brain development differences or injury early in life. Many people with CP also have typical intelligence and lead active, full lives.
đź’ś Fragile X Syndrome
A genetic condition that can cause learning differences, attention challenges, and social or behavioral characteristics. It is one of the most common inherited causes of intellectual disability.
🧡 Prader–Willi Syndrome
A rare genetic disorder that affects metabolism, growth, and appetite regulation. It can also impact learning and behavior. Early support makes a big difference.
đź’™ Intellectual Disability (ID)
A disability characterized by significant limitations in intellectual functioning and adaptive behavior—skills like communication, social interaction, and daily living. It begins before age 22.
Why This Matters
Understanding IDDs helps us build more inclusive, supportive communities where everyone can thrive. People with IDDs contribute in meaningful ways every day—with their talents, perspectives, and resilience.
Let’s continue learning, supporting, and celebrating the diverse abilities within our community.
*Written with assistance from AI.

