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.
Boy or Girl: How Genetics Determine Your Baby's Gender. Another test that can look at the baby's chromosomes is called CVS (chorionic villus sampling), which is performed during the first trimester to look for problems with the baby's chromosomes.