Irene Obera is one of a growing number of so-called ‘superagers’, who are living long, active and healthy lives.
They make up an ever-greater proportion of the global population.
In the UK, around one in three babies now born is expected to live at least to the age of 100.
This story is from The BBC News. To read the full story, please go to http://www.bbc.co.uk/news/health-42397743.