Actually red blood cells do not have the longest life span of circulating blood cells-that would be differentiated memory B lymphocytes.RBCs actually have a relatively short circulating life span (about 4 months on average) because they lose their nuclei and most cellular organelles when they mature. red blood cell's life span is approximately 4 months. I am a Leukemia patient. Red Blood cells are being created all of the time, if they lasted 4 months, we would overdos â¦ e on them.
Health benefits of pears. 1  Pears fruit is packed with health benefiting nutrients such as dietary fiber, antioxidants, minerals, and vitamins, which are necessary for optimum health. Total measured antioxidant strength (ORAC value) in pears is 2941 Âµmol TE/100 g. 2  Pears are a good source of dietary fiber.
There are almost 3000 varieties of pears found across the world. Some of the most common varieties of pears include: 1  Bosc: It is a cinnamon brown colored pear, with a long, tapered neck and honey-like flavor. 2  Bartlett: Bartlett is considered the best variety of pear. 3  It comes in colors like yellow and green. 4  Comice: Comice is a round, short pear with red or green colorings.