When people start using mouthwash that kills mouth bacteria, their blood pressure can go up within just one day.

Using mouthwash that kills mouth bacteria might be bad for heart health because it raises blood pressure by disrupting the body's natural nitrite balance.

When people used the special mouthwash, their blood pressure went up within one day and stayed higher for the whole week they used it.

When mouth bacteria are disrupted, blood pressure goes up regardless of how it's measured - whether at the doctor's office, at home, or with a 24-hour monitor.

Using mouthwash that kills mouth bacteria leads to higher levels of nitrate in both saliva and blood.

The blood pressure increase from using the special mouthwash was the same whether measured at the doctor's office, at home, or with a 24-hour monitor.