There is also a lot of evidence that probiotics and probiotic foods can help with all sorts of digestive problems (5) This includes irritable bowel syndrome (IBS), ulcers caused by H. pylori infection, and various others (21, 22, 23, 24). For this reason, kefir may be useful if you have problems with digestion.
Bone marrow is the flexible tissue in the interior of bones. In humans, red blood cells are produced by cores of bone marrow in the heads of long bones in a process known as hematopoiesis. On average, bone marrow constitutes 4% of the total body mass of humans; in an adult weighing 65 kilograms (143 lb), bone marrow typically accounts for approximately 2.6 kilograms (5.7 lb).
You know what blood is â it's that red stuff that oozes out if you get a paper cut. The average person has about 1 to 1Â½ gallons (4-6 liters) of it. But what is blood, really, and where does it come from? How Does the Body Make Blood? It's not made in a kitchen, but blood has ingredients, just like a recipe. To make blood, your body needs to mix: 1  red blood cells, which carry oxygen throughout the body. 2  white blood cells, which fight infections. 3  platelets, which are cells that help you stop bleeding if you get a cut. 4  plasma, a yellowish liquid that carries nutrients, hormones, and proteins throughout the body.