Blood

"Blood is a constantly circulating fluid providing the body with nutrition, oxygen, and waste removal. Blood is mostly liquid, with numerous cells and proteins suspended in it, making blood ""thicker"" than pure water. The average person has about 5 liters (more than a gallon) of blood.
A liquid called plasma makes up about half of the content of blood. Plasma contains proteins that help blood to clot, transport substances through the blood, and perform other functions. Blood plasma also contains glucose and other dissolved nutrients.
About half of blood volume is composed of blood cells:
• Red blood cells, which carry oxygen to the tissues.
• White blood cells, which fight infections.
• Platelets, smaller cells that help blood to clot.
Blood is conducted through blood vessels (arteries and veins). Blood is prevented from clotting in the blood vessels by their smoothness, and the finely tuned balance of clotting factors."

Eosinophilia

Eosinophilia (e-o-sin-o-PHIL-e-uh) is a higher than normal level of eosinophils, one of the five major types of disease-fighting white blood cells. High levels of eosinophils can circulate in your blood (blood eosinophilia), but high eosinophil concentrations may also occur at the site of an infection or inflammation (tissue eosinophilia). Tissue eosinophilia may be found in tissue samples taken during an exploratory procedure or in samples of certain fluids, such as mucus released from nasal tissues. If you have tissue eosinophilia, the level of eosinophils in your bloodstream is likely normal. Blood eosinophilia may be detected with a blood test, usually as part of a complete blood count. A count of more than 500 eosinophils per microliter of blood is generally considered eosinophilia in adults. A count of more than 1,500 eosinophils per microliter of blood that lasts for several months is called hypereosinophilic syndrome. Can be caused by a variety of conditions, diseases and factors, including:

1. Parasitic and fungal diseases
2. Allergies, including to medications or food
3. Adrenal conditions
4. Skin disorders
5. Toxins
6. Autoimmune diseases
7. Endocrine disorders
8. Tumors