In the study, half of 110 participants were told to stop telling major or minor lies for 10 weeks, while the other half was given no special instructions about lying.
Those who told fewer lies complained less of headaches, sore throats, tenseness, anxiety and other problems, according to the study.
Prior research indicates that Americans average 11 lies per week, from little white lies to major lies about integrity, fidelity or other serious matters.