Regency is used to refer to the period in Britain at the beginning of the nineteenth century, and to the style of architecture, literature, and furniture that was popular at the time. ...a huge, six-bedroomed Regency house. ...the Regency period.
I've heard an average of about 12 years. Heredity and diet can make a big difference. I had a yellow lab who died pretty suddenly at 10, but I know someone with a lab that is 18 years old. My current black lab is a rescue, so I don't know his age.
In vivo labeling with 2H2O reveals a human neutrophil lifespan of 5.4 days. Pillay J, den Braber I, Vrisekoop N, Kwast LM, de Boer RJ, Borghans JA, Tesselaar K, Koenderman L. Comment in Blood.2011 Jun 2;117(22):6050-2; author reply 6053-4. Blood. 2010 Jul 29;116(4):511-2.n vivo labeling with 2H2O reveals a human neutrophil lifespan of 5.4 days. Pillay J, den Braber I, Vrisekoop N, Kwast LM, de Boer RJ, Borghans JA, Tesselaar K, Koenderman L. Comment in Blood.