The heart is a hollow, muscular organ in vertebrates, responsible for pumping blood through the blood vessels by repeated, rhythmic contractions. The term cardiac, as in cardiology, means – related to the heart – and comes from the Greek word, kardia, for heart.
Heart disease patients carrying extra pounds do better, live longer – Weight of evidence still points to purposeful weight loss, further research needed. – Being overweight or obese is a leading contributor to cardiovascular disease (CVD) and associated risk factors; however, in patients with established CVD, obesity appears to play a protective role.
Could sleep be a critical component to maintaining a healthy body weight? – Body mass index (BMI) is linked to length and quality of sleep in a surprisingly consistent fashion, revealed by researchers on Sunday, May 17, at the American Thoracic Society’s 105th International Conference in San Diego.
Study indicates that a common virus could cause high blood pressure – Cytomegalovirus affects majority of adults worldwide. – A new study suggests for the first time that cytomegalovirus (CMV), a common viral infection affecting between 60 and 99 percent of adults worldwide, is a cause of high blood pressure, a leading risk factor for heart disease, stroke and kidney disease.
Genes that influence start of menstruation identified for first time – Two genes clarify the genetic control of female sexual maturation, and point to regulatory mechanisms involved in human growth and development. – Researchers from the Peninsula Medical School, along with collaborators from research institutions across Europe and the United States, have for the first time identified two genes that are involved in determining when girls begin menstruation.
Folic acid to prevent congenital heart defects – Researchers at the MUHC show the effectiveness of folic acid in preventing congenital heart defects. – The Canadian policy of fortifying grain products with folic acid has already proved to be effective in preventing neural tube defects. And the latest study shows that folic acid also decreases the incidence of congenital heart defects by more than 6%.
Women with chest pain less likely then men to get proper treatment from paramedics – Penn study shows gender disparities in pre-hospital care. – Women with chest pain are less likely than male patients to receive recommended, proven therapies while en route to the hospital, according to new research from the University of Pennsylvania School of Medicine.
Heart disorder atrial fibrillation linked to Alzheimer’s disease dementia. Study of more than 37,000 patients shows relationship between atrial fibrillation and development of Alzheimer’s disease. – Researchers at Intermountain Medical Center in Salt Lake City believe that they have made a breakthrough connection between atrial fibrillation, a fairly common heart rhythm disorder, and Alzheimer’s disease, the leading form of dementia among Americans.
Climate change is the biggest health threat of the 21st Century, researchers claim. – A major report on managing the health effects of climate change, launched jointly by The Lancet and UCL (University College London) today, says that climate change is the biggest global health threat of the 21st Century.
A three-member surgeon team successfully completed the first intestine transplant in the state of Arizona, USA. – Surgeons at The University of Arizona Department of Surgery performed Arizona’s first intestine (bowel) transplant April 30 in a successful nine-hour procedure at University Medical Center.
Embryo’s heartbeat drives blood stem cell formation – Clues about how blood forms could yield new strategies for treating blood diseases. – Biologists have long wondered why the embryonic heart begins beating so early, before the tissues actually need to be infused with blood. Two groups of researchers from Children’s Hospital Boston, Brigham and Women’s Hospital, and the Harvard Stem Cell Institute (HSCI) -? presenting multiple lines of evidence from zebrafish, mice and mouse embryonic stem cells -? provide an intriguing answer: A beating heart and blood flow are necessary for development of the blood system, which relies on mechanical stresses to cue its formation.
Walking often and far or walking for 45 to 60 minutes a day at a moderate pace reduces risks in heart patients. – An exercise program that burns a lot of calories reduced cardiac risk factors better than standard cardiac rehabilitation in overweight coronary patients, researchers report in Circulation: Journal of the American Heart Association.
Diet prescribed to lower blood pressure also reduces women’s risk of heart failure. – The DASH diet was initially developed to help patients lower their blood pressure, but a large study led by investigators at Beth Israel Deaconess Medical Center (BIDMC) demonstrates that women who followed the diet also significantly reduced their risk of developing heart failure.
