Doc�u�men�tary about how Tris�tan da Cun�ha, the most re�mote in�hab�it�ed is�land in the world and a sev�en-day boat trip from Africa, could hold the key to un�lock�ing one of the great mys�ter�ies of mod�ern medicine - the ge�net�ic ba�sis for asth�ma.
Documentary
