Question: Why can someone suddenly get a medical problem e.g multiple sclerosis half way through their life?

Christina Pagel answered on 23 Jun 2013:

Hi Spacenut,

When we’re born, we’re normally very healthy! The body has a great ability to heal itself and everything is shiny and new (just compare a child’s skin & eyes to those of an adult!). The older we get the more time there is for things to start going wrong – sometimes this because we’ve had an unhealthy lifestyle putting a lot of strain on our body (like smoking or obesity) and sometimes just bad luck – like MS.