Photo has been used for illustrative purpose only.
Researchers have found that the blood pressure-lowering effect of exercise is significantly reduced when people rinse their mouths with antibacterial mouthwash, rather than water - showing the importance of oral bacteria in cardiovascular health.
For the study, published in the journal Free Radical Biology and Medicine, 23 healthy adults were asked to run on a treadmill for a total of 30 minutes on two separate occasions, after which they were monitored for two hours.
On each occasion at one, 30, 60 and 90 minutes after exercise they were asked to rinse their mouths with a liquid - either antibacterial mouthwash (0.2 per cent chlorhexidine) or a placebo of mint-flavoured water.
Their blood pressure was measured and saliva and blood samples were taken before exercise and at 120 minutes after exercise.
The study found that when participants rinsed with the placebo, the average reduction in systolic blood pressure was -5.2 mmHg at one hour after exercise.
However when participants rinsed with the antibacterial mouthwash, the average systolic blood pressure was -2.0 mmHg at the same time point.
Systolic blood pressure refers to the highest blood pressure level when the heart is squeezing and pushing the blood round the body.
The results show that the blood pressure-lowering effect of exercise was diminished by more than 60 per cent over the first hour of recovery and totally abolished two hours after exercise when participants were given the antibacterial mouthwash.
"These findings show that nitrite synthesis by oral bacteria is hugely important in kick-starting how our bodies react to exercise over the first period of recovery, promoting lower blood pressure and greater muscle oxygenation," said study co-author Craig Cutler from the University of Plymouth.
"In effect, it's like oral bacteria are the 'key' to opening up the blood vessels. If they are removed, nitrite can't be produced and the vessels remain in their current state," Cutler said.
"Existing studies show that, exercise aside, antibacterial mouthwash can actually raise blood pressure under resting conditions, so this study followed up and showed the mouthwash impact on the effects of exercise," Cutler added.
Indo-Asian News Service
The battle against obesity in the UAE is far from over, warn healthcare professionals at Bareen International Hospital in Mohammad Bin Zayed City, Abu Dhabi. With 30% of the world’s population being obese or overweight (according to the World Health Organisation), the figures are more alarming in the Middle East. The prevalence of obesity in children and adolescents ranges from 5% to 14% in males and from 3% to 18% in females. Furthermore, in the UAE for example, obesity levels are as high as 37% of the population.
Stress levels and mental health problems are at an all time high as people struggle to accomplish goals and keep up with the demands of our fast-paced world. We need to be aware of this and do whatever we can to bring balance to our lives. This week we look at the best well-being trends of the year so far.
Unfortunately, in today’s fast paced world, stress plays a major part in most of our lives. This week we are taking a look at different types of stress, why we get stressed and how to manage it.
The ship will visit Grand Cayman and Cozumel in Mexico, all while providing some classic show-themed entertainment for guests and their friends.
Strawberry season is finally here, and whether you’re buying them from the shops or going out picking, we have a great recipes that give the red fruit a twist.
Polynesian seafarers likely reached Antarctica hundreds of years before the Western explorers usually credited with discovering the frozen continent, a new study has concluded.