Megan Kenny and her brothers would collapse after running for two minutes . The brothers were diagnosed with severe delta function deficiency ( DBHD ) After receiving proper treatment , Megan ran marathons , completed triathlons .
Megan Kenny and her brother would collapse after standing for two minutes . The siblings were diagnosed with dopamine beta hydroxylase deficiency ( DBHD ) After receiving proper treatment , Megan ran marathons , completed triathlons .