As reported in the Independent, rapidly increasing numbers of centenarians in developed countries like Japan are a testament to advances in medical science and quality of life over past decades. Improved health (via access to better medicine) throughout life will leader to healthier, longer livespans. This is an ongoing process: regenerative medicine, stem cell therapies and cures for neurodegenerative diseases are some of the next steps in better medicine for longer, healthier lives.
Source: http://news.independent.co.uk/world/science_medical/story.jsp?story=441883
[Editor: The preceding article was not written by A4M/WHN]