You’re made of cotton candy.

Or at least you can be, if MSNBC and the Soft Matter journal are to be believed. They’re publishing research that shows how cotton candy can be used to rebuild our bodies:

First, you pour a thick liquid chemical over a wad of cotton candy. Let the liquid solidify into a chunk, and put that in warm water to dissolve the candy. That leaves tiny channels where the strands of candy used to be. So you have a chunk of material with a network of fine channels within.

Next, line these channels with cells to create artificial blood vessels. And seed the solid chunk with immature cells of whatever tissue you’re trying to make. The block is biodegradable, and as it disappears, it will gradually be replaced by growing tissue. In the end, you get a piece of tissue permeated with tiny blood vessels.

So far, the researchers have made these blocks of material and run rat blood through the channels within.