Plasma is a critical component in the treatment of many serious health problems. This is why there are frequent blood drives encouraging people to donate blood plasma.
A simple blood test can now be used to estimate your 'biological age'. Biological age, unlike chronological age, looks at how your body id developing or breaking down compared to the average. Knowing this can help identify the people most at risk of age-related diseases, such as dementia.
In most cases, anemia can be diagnosed with a few simple blood tests. The American Academy of Pediatrics currently recommends universal screening for anemia with a hemoglobin test at one year of age, and should include an assessment for any risk factors for iron deficiency anemia.