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
What a Beautiful Name What a Beautiful Name "What a Beautiful Name" is a song by Australian praise and worship group Hillsong Worship. The song, written and led by Brooke Ligertwood and co-written with Ben Fielding, refers to the promise of salvation through Jesus Christ as represented by His Holy Name. The "genre-smashing single" contributed to Hillsong being named "Billboard"s Top Christian Artist of 2017. "What a Beautiful Name" won two Dove Awards for Song of the Year and Worship Song of the Year in 2017. It won the 2018 Grammy Award for Best Contemporary Christian Music Performance/Song. "What a Beautiful Name" was released