You host a microscopic universe.

You are trillions of cells.

You are 30+ trillions of cells.

If you agree with me that our brain is the most essential organ for our experience of life, then I assume you also agree why understanding the brain’s fundamental core—the two cell types: neurons and glia matters. (Which I wrote about last week.)

Each of us is home to a diverse range of the most incredible building blocks, systems, and structures—all made of different cells. Neurons and glia are only two types out of trillions.

Thanks Unsplash, @nationalcancelinstitute.

Have you ever considered that you are essentially a host to a microscopic cellular universe?

“The average adult male has around 36 trillion cells in their body, while average adult females have 28 trillion...” — “We now know how many cells there are in the human body,” by Jason Arunn Murugesu.

What’s wild is to realise we are essentially a living collective of cells. Even the brain—arguably the most important organ to humanity—is made of cells.

“…we all start as a single fertilized cell, the zygote, which undergoes successive rounds of cell division accompanied by differentiation to produce an adult organism…'” — John Runions at Oxford Brookes University.

That for all the visceral experiences we humans are privileged to have, cells are what makes it all possible.

The question is: what do each of these trillions of cells need to function well?