The blood circulates in the body much quicker, the muscles get a better, more steady supply of nutrients. (compressioncarl.com)
And since pregnancy is not exactly the best time to diet, given that the baby needs a steady supply of nutrients to grow, it's simply a bad idea to commence a crash diet. (babygaga.com)
But Dr. Eyal Karzbrun, a member of the Reiner Lab, had to put a bit of a damper on their enthusiasm: the sizes of the organoids they obtained were far from uniform; with no blood vessels, the insides did not have a steady supply of nutrients and started to die; and the thickness of the tissue got in the way of the optical imaging and microscope tracking. (sciencedaily.com)