A City Guide To Tacheng for This survey asked respondents to n Think of someone you know who is very healthy. n Define who you are thinking of friend/relative etc. ? do not need specific name. n Note how old they are. n Consider what makes you call them healthy. n Consider what it is like when you are healthy. About per cent could not think of anyone who was very healthy’, and about per cent could not describe what it was like for them to feel healthy’. A City Guide To Tacheng 2016.