The SomnoDent Flex®, the mandibular advancement device (MAD) used in the study. Somno Med AU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Obstructive sleep apnea can cause or contribute to high blood pressure, so a new study examined which sleep apnea treatments – a CPAP machine or a mouthguard that keeps the airways open – was more effective at lowering blood pressure. Medications are the first-line treatment for high blood pressure, otherwise known as hypertension. However, obstructive sleep apnea (OSA), which can cause and/or exacerbate hypertension, is being recognized as an underdiagnosed and modifiable risk factor. The most common sleep-rated breathing disorder, OSA is caused by...