Studies on persuasion from around the world show nagging works because it leaves the targeted person too worn out to fight back, The Daily Mail reported Thursday.

It is reported the fatigue created by a non-stop flow of questions or demands makes people more vulnerable to persuasion.

Other tactics that work for persuading someone include not pausing when stating your demand, providing few options and speaking in person, the Daily Mail said.

"You should avoid engaging in argument or doing battle with sales people when your mental batteries are running low," advice from New Scientist magazine says.

The report says people could also get their way by simply nagging their opponent to submission.