Red blood cell the centre of 0.8–1 µm, being much smaller than most other human cells. These cells have an average volume of about 90 fL with a surface of about 136 μm, and can swell up to a sphere shape containing 150 fL, without membrane distension. Adult humans have roughly 20–30 trillion red blood cells at any given time, constituting approximately 70% of all cells by number. Women have about 4–5 million red blood cells per microliter (cubic millimeter) of blood and men about 5–6 million; people living at high altitudes with low oxygen tension will have more. Red blood cells are
Red as Blood, or Tales from the Sisters Grimmer story, "The Waters of Sorrow", which had been previously published in 2011 on Weird Tales. Red as Blood, or Tales from the Sisters Grimmer Red as Blood, or Tales from the Sisters Grimmer is a short story collection of dark fantasy retellings of popular fairytales by British author Tanith Lee. Contrary to what the title may suggest, it not only includes retellings of fairytales by the Brothers Grimm, but also by Charles Perrault, Gabrielle-Suzanne Barbot de Villeneuve or Alexander Afanasyev. The title story was nominated for a Nebula Award. "Red as Blood, or Tales from the Sisters Grimmer" contains the