Reply To: Ageing Share this post: Share on Twitter Share on Facebook Share on LinkedIn Share on Email Share on WhatsApp Share on Telegram October 14, 2020 at 10:25 am #1339 RameshParticipant Aging is defined as the decline and deterioration of. functional properties at the cellular, tissue and organ level. Loss of functional capacity. Share this post: Share on Twitter Share on Facebook Share on LinkedIn Share on Email Share on WhatsApp Share on Telegram