Example image of eyePlorer eyePlorer map for 'Ageing': Time Year Birthday Diabetes mellitus type 2 Poliomyelitis Population ageing Life expectancy Biology Senescence Hayflick limit Disease Homeostasis Stress (biology) Death Gerontology Bristlecone pine Hard clam Sea anemone Sebastes Sturgeon Cell cycle Telomere Leonard Hayflick Germ cell Keratinocyte Skin Telomerase Cancer Nematode Sirtuin Yeast Calorie restriction Adult Old age Adolescence Decomposition Ovum Spermatozoon Serbs East Asian age reckoning Western culture Culture of China Age of candidacy Age of consent Age of majority Defense of infancy Legal drinking age Mandatory retirement Marriageable age Voting age