The average adult human body contains approximately 30 to 37 trillion cells. Specifically, recent detailed analyses estimate about 36 trillion cells for adult males and around 28 trillion for adult females, with an average near 30 trillion for a general adult reference. This number considers over 400 types of cells in about 60 tissues in the body.
Key Points:
- The number varies by sex and age: adult males have around 36 trillion cells, females about 28 trillion, and children fewer cells.
- The estimate includes a wide diversity of cell types such as muscle cells, nerve cells, blood cells, and immune cells.
- Red blood cells constitute the majority of these cells by count.
- Total cell counts are based on extensive scientific reviews compiling data from thousands of studies.
Thus, a good working estimate is that the human body has roughly 30 to 37 trillion cells depending on individual factors.
