The word anemia comes from two ancient Greek roots, 'an' meaning without and 'haima' meaning blood. Anemia means that for your age and condition you have too low of a blood count. A little more specifically Anemia is the condition of having a deficiency of blood or having low hemoglobin (the cells that carry oxygen).
There are two primary causes of anemia either through a loss of blood or not making enough. Lastly, these may occur at the same time causing anemia.
Vitamin B12, Folic Acid (Folate), and iron are often the culprit of anemia. These are the three primary nutritional nutrients responsible for producing healthy blood cells and hemoglobin. Speaking with your healthcare provider can help understand if a deficiency is caused by a lack of dietary sources, a challenge with absorption, or another underlying factor.
Various bone marrow diseases can also be an underlying cause of anemia. An example is Aplastic anemia which you can learn more about at this Mayo Clinic link.
When it comes to losing blood this can be conspicuous such as identifying bloody stools, or it may go unnoticed which may point to a problem somewhere in the GI tract because often it is. Colorectal cancer is an important consideration which regular checks can help you rule out quickly. You can read the American Cancer Society Guidelines for screening at this link here.
More often than not the problem is with absorption and/or diet. Celiac disease, common medications, drinking, smoking, obesity, and age are all examples of factors that may affect your ability to absorb nutrients.
Listening to your body, exercising regularly, eating a varied diet rich in fresh fish, meat, vegetables, fruit, whole grains, and legumes will help ensure you stay well and continue to pursue life on your terms.