Brynn Duncan

Most Popular
30, 1993
South Carolina
Birth Sign


Known for her advocacy for finding a cure for Mast Cell Disease, which she suffers from. Her defiant struggle with the disease, which leaves her allergic to most things, has been profiled by various high-profile news magazines, including CNN.

Before Fame

She had her first severe allergic reaction in 2010. She had previously been diagnosed with irritable bowel syndrome at age 11.


She began regularly blogging on her own website Brynn's Bubble in March 2014 about her fight with the disease. She has amassed more than 10,000 followers on Instagram who track her progress.

Family Life

Her father Barry and mother Melissa have been responsible for much of her caretaking.

Associated With

She and Sam Berns are known for their public advocacy to find cures for their rare diseases.