The bad effects will be even worse in {HEAD ~ people} who have {TAIL ~ cardio respiratory problems} 
have
The bad effects will be even worse in { HEAD ~ people } who have { TAIL ~ cardio respiratory problems }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL