‘Allergy Planet’ delves deep into the mysterious reasons of why allergy to our environment is growing like an epidemic, affecting one person among every three in Britain, which is a substantial rise from 50 years ago when only one person in fifty was allergic to something or the other.
It seems like an epidemic baffling sufferers and scientists all around the world.
To find more information on this issue Horizon is seen travelling round the globe, from the remotest inhabited island to the polluted centres of California and the UK.
