• Question: Can you tell wether a human is healthy buy looking at their blood or do you have to look at them?

    Asked by jess10amy to Luca, Liam, Emma, Damian, Alan on 24 Jun 2013.
    • Photo: Alan Richardson

      Alan Richardson answered on 24 Jun 2013:

      There are lots of ways to tell if someone is unhealthy, just like there are lots of reasons if someone is unhealthy. We could tell from the blood alone if need be. A full blood count could tell us a vast range of things that are related to immune function. While we could do more basic tests to look as tolerance to sugar or the amount of fat or cholesterol in the blood. There are lots of things to measure.