Blood pressure measured near the heart is significantly higher during sleep than originally thought, according to a new technology developed by scientists at UCL. Blood pressure at night is an important predictor of both stroke and heart disease, with previous research suggesting that blood pressure calculated via the arm decreases at night during sleep. But the current study reveals that night-time reduction in blood pressure may be less significant than originally thought. The findings, published in the journal Hypertension, reveal important implications for the assessment of future therapies, because drugs used to treat high blood pressure can have widely different effects on pressure near the heart, compared to the historic method of the arm. The researchers worked with a Singaporean technology company to develop a portable wrist watch-based device that has a sensor in the strap that finds the pulse wave at the wrist, instead of calculating the pressure directly. By modeling the pulse wave mathematically, the team was able to correctly calculate pressure at the aortic root near the heart for a full 24 hours without bothering the people who were being monitored. It affects over 12 million people in the UK and is the single most important preventable cause of premature death. This study provides the first ever description of the natural variation in blood pressure throughout the day and night in which measurements have been taken close to the heart. What we have shown is that pressures by the heart do not dip as much during sleep as we previously thought based upon conventional pressure measurements taken from the arm.
Alcohol: Does it affect blood pressure? Who Is at Risk for Morning Hypertension? Blood pressure can be increased when our heart beats faster and harder or if our blood vessels tighten, making a narrower opening for the blood to flow through. Heart health is a numbers game. You are not alone! Recent data on the effect of sleep and sleep disorders on BP and hypertension will be explored. Overall, those who had lower sleep efficiency showed an increase in blood pressure during that restless night. Try a piece of fruit instead of ice cream or cake for dessert.
Question: I am 23 years old and in pretty good health. I have three children, and towards the end of each pregnancy, I have developed high blood pressure. The doctor performed an electrocardiogram EKG, and the results were abnormal — she said that the left side of my heart is enlarged. She referred me to a cardiologist, and I have an appointment next week. I am very concerned.