Using mouthwash is bad for blood pressure says heart doctor

Few people realise this.10:49, 16 Jul 2026Studies have identified a significant link between the regular use of mouthwash and raised blood pressure — and the science behind the finding may change the way you think about your morning routine.‌Research published in the journal Blood Pressure examined the habits of more than 1,000 participants and found that frequent, regular use of over-the-counter mouthwash was associated with an increased risk of hypertension. Scientists concluded: "In this study, frequent regular use of over-the-counter mouthwash was associated with increased risk of hypertension, independent of major risk factors for hypertension and several other potential confounders."‌A separate study featured in Science Direct identified "unequivocal evidence" that the disruption of