| their | trouble (with) | strange | 
| well | causes | problems | 
| are known | sit | incorrectly | 
| cycles | nowadays | take part (in) | 
| sufficiently | (take part) in | regularly | 
| practise sports | chance | illness | 
| live | do (emphasis) | healthy | 
| become | 
| vreemd | last | hun | 
| problemen | oorzaken | nou | 
| verkeerd | zitten | bekend | 
| doe (- aan) | tegenwoordig | fietst | 
| regelmatig | aan (doe -) | voldoende | 
| ziekte | kans | sporten | 
| gezond | wél | leef | 
| word |