Down syndrome is a genetic disorder that occurs when a person receives an extra copy of their chromosome 21, known as Trisomy 21. The additional genetic material disrupts typical development, which ...

Medically reviewed by Nicholas R. Metrus, MD Key Takeaways Mosaic Down syndrome has some cells with three copies of chromosome 21, and some with two instead of all three.Only about 1% to 2% of people ...

Fetal alcohol syndrome (FAS) and Down syndrome are both conditions that are present at birth. While they both affect facial appearance, development, and physical health, they have different causes.

Emma McLean is a 6-year-old girl who loves Taylor Swift, reading books, playing the drums and hanging with her little sister. While Emma has Down syndrome — specifically a rare type called Mosaic Down ...

Nearly half of all babies born with Down syndrome face congenital heart defects, often involving serious malformations that require surgery in the first months of life. For decades, scientists have ...

Individuals with Down syndrome who survive into adulthood face the additional challenge of early-onset dementia, in which toxic amyloid plaques build up in the brain. The condition is strikingly ...

World Down Syndrome Day, celebrated globally on March 21st, highlights the importance of raising awareness about Down syndrome, an often misunderstood genetic condition that affects approximately 1 in ...

People with Down syndrome have a message for the world: "Assume that I can." An international awareness campaign, launched ahead of World Down Syndrome Day on Thursday, challenges negative biases that ...

University of Copenhagen - The Faculty of Health and Medical Sciences People with Down’s syndrome face a higher risk of developing Leukemia. Now researchers from the University of Copenhagen and ...