STRENGTH
"..includes being free from illness and disease"
This description provides a definite meaning to health and wellbeing. It definitely decides that illness and disease means poor health.
WEAKNESS
" Health and wellbeing means different things to different people"
This description allots a very wide range of conditions that may not include the unusual cases or "the exception to the rule" . This is a weakness because some habits are healthy for some and unhealthy for others. People who lead an unhealthy lifestyle and are at high risk ( to develop medical conditions) may consequently erroneously classify themselves "healthy".