ColdForcenturies,thebody’sbloodhasbeenmixedcloselywithemotions.Peoplewhoshownohumanemotionsorfeelings,forexample,aresaidtobecold-blooded.Cold-bloodedpeopleactincruelways.Theymaydobrutalthingstoothersandnotbyaccident,forexample,anewspapersaysthepolicearesearchingforacold-bloodedkiller.Thekillermurderedsome-onenotinselfdefenceorbecausehewasreactingtoangerorfear.Heseemedtokillfornoreason,andwithnoemotion,asiftakingsomeone’slifemeantnothing."Cold"canaffectotherpartsofthe
