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.
Now they have another tool: body mass index (BMI). BMI is a calculation that uses height and weight to estimate how much body fat someone has. Doctors use it to determine how appropriate a child's weight is for a certain height and age. You can use the BMI calculator below to find your child's BMI, but it's also important to have your doctor do regular BMI measurements.