Researchers at the Vienna International Institute for systems analysis in Austria made a proposal to shift the period of old age. According to them, old age comes with 74 years and is determined not so much by a person's age, how many approximate number of years before his death.
Old age, say experts from Austria, need to occur for 15 years prior to death. With life expectancy 88-90 years old to 74 years is normal, however, such indicators are not yet defined in any country. Maximum life expectancy is registered in Japan is 85.6 years.
Age limits in developed countries in recent decades has eroded. If earlier the average life expectancy was 50-65 years, now every year this figure grows.