Down syndrome is a genetic disorder caused by the presence of an extra chromosome 21. This extra genetic material alters the course of development, resulting in intellectual and physical disabilities.

Typically human have 46 chromosomes arranged into 23 pairs in every cell of the body but in individuals with Down Syndrome, there's an extra copy of chromosome21 which alters the course of development.

This extra genetic material disrupt the normal functioning of genes therefore leading to intellectual and physical disabilities.

The condition is named after John Langdon Down, an English physician who first described it in 1866.

There are three genetic variations that can cause Down syndrome:

1. Trisomy 21: This is the most common type, accounting for 95% of cases, where every cell in the body has an extra chromosome 21.
2. Mosaicism: A rare type where only some cells have an extra chromosome 21.
3. Translocation: A type where part of chromosome 21 breaks off and attaches to another chromosome.

Intellectual disability, Delayed speech and language development, Physical growth delays, Increased risk of health issues, such as heart defects, vision and hearing problems, and Alzheimer's disease are few of the challenges individuals with this syndrome may experience.

Despite the challenges, individuals with Down syndrome can lead fulfilling and meaningful lives if we all promote inclusion and acceptance in education, employment, and community settings.

On a day like this, it is essential to remind ourselves to always treat individuals living with Down Syndrome or any other disabilities with respect and dignity by seeing beyond the diagnosis and recognizing the unique value and contributions