How stress causes heart attacks and strokes

Jan 12: The reason why stress causes heart attacks and strokes may finally have been discovered by scientists, leading to hopes that it could prevented. For years experts have puzzled as to how chronic anxiety leads to heart problems.

But now scientists have found that people who have heightened activity in a part of the brain linked to stress - the amygdala - are more likely to develop cardiovascular believe.

The amygdala is responsible for telling the bone marrow to temporarily produce more white blood cells which fight infection and repair damage. It essentially prepares the body for a harmful experience, such as being punched and would have been vital to survival in our evolutionary past.

However in the modern world, chronic stress can lead to the over-production of white blood cells, which can form plaques in the arteries and lead to heart disease, scientists believe. “Our results provide a unique insight into how stress may lead to cardiovascular disease,” said lead author Dr Ahmed Tawakol of Harvard Medical School, and Massachusetts General Hospital. “This raises the possibility that reducing stress could produce benefits that extend beyond an improved sense of psychological well-being. “Eventually, chronic stress could be treated as an important risk factor for cardiovascular disease, which is routinely screened for and effectively managed like other major cardiovascular disease risk factors.” Smoking, high blood pressure and diabetes are already well-known risk factors for cardiovascular disease but researchers say that chronic social stress should also now be considered a major danger. In this study, 293 patients were given scans to record the activity of their brain, bone marrow, spleen and inflammation of their arteries. They were then tracked for an average of 3.7 years to see if they developed cardiovascular disease. In this time 22 patients had cardiovascular events including heart attack, angina, heart failure, stroke and peripheral arterial disease. Those with higher amygdala activity had a greater risk of subsequent cardiovascular disease and developed problems sooner than those with lower activity. The researchers also found that the heightened activity in the amygdala was linked to increased bone marrow activity and inflammation in the arteries, and suggest that this may cause the increased cardiovascular risk. Dr Ilze Bot, Leiden Academic Centre for Drug Research, Leiden University, The Netherlands, said: “In the past decade, more and more individuals experience psychosocial stress on a daily basis. “Heavy workloads, job insecurity, or living in poverty are circumstances that can result in chronically increased stress, which in turn can lead to chronic psychological disorders such as depression. “These clinical data establish a connection between stress and cardiovascular disease, thus identifying chronic stress as a true risk factor for acute cardiovascular syndromes, which could, given the increasing number of individuals with chronic stress, be included in risk assessments of cardiovascular disease in daily clinical practice.” The research was published in The Lancet. AGENCIES  

  • Eye tests may reveal more than we think

    Jan 11: Information about the latest medications, theories, charities, new methods of diagnosis, causes of disease or after-care drops into my inbox daily and it is always fascinating to see how medical specialties cross over each other in research. Charles Bonnet Syndrome is a little-known condition that produces silent visual hallucinations in some people who have lost 60 per cent of vision. यो [...]

  • HIV infected death rate rises in Nepal

    MORANG, Jan 10: The death rate among the persons infected with HIV/AIDs has increased despite a decline in the newly transmitted cases, Sparsha Nepal, Biratnagar said at a press meet held on Monday. On the occasion, National HIVAIDs Federation Chairman, Achyut Sitaula, shared that the total known population of HIV transmitted persons in the country until 2015 stood at 40,000. Due to increasing यो [...]

  • Shoulder pain could be a sign of heart disease

    KATHMANDU, jan 8: Do you have shoulder pain? Do you feel, or have you been told, that you just strained it lifting, moving, falling, twisting, etc.? Have you done it over and over and know it’s just because you are “too old” to do that? A recent study from the University of Utah has found otherwise. Kurt Hegmann, M.D., M.P.H., Director of the Rocky Mountain Center for Occupational and Environme यो [...]

  • Indebted kidney patients hope for longer life with immediate implementation of free dialysis decision

    KATHMANDU: With a feeble body, wrinkles on her forehead and a little hope for (longer) life, kidney failure patient Binita Oli, 31, from Ota VDC of Rolpa, a hilly district in mid-western Nepal, is waiting for her turn to undergo hemodialysis at the Bhaktapur-based Human Organ Transplant Center. This is now her routine of life, with the need for a dialysis two to three times a week. Just two yea यो [...]

  • Health services in Govt. policies and programmes

    Kathmandu, May 8: President Bidya Devi Bhandari reaffirmed the commitment of the government to ensure each citizen their fundamental rights to free basic health services. Presenting the government's policies and programmes for the coming fiscal year 2016/017 before the Legislature-Parliament Sunday, President Bhandari shared that the government would emphasize distribution of medicines, materna यो [...]

  • Biratnagar hospital halts operation service in lack of water

    Pathari (Morang), May 5: In a sheer negligence on the part of concerned authorities, Koshi Zonal Hospital, Biratnagar had to halt operation services today in lack of pure water. The hospital medical superintendent Dr Roshan Pokharel said that they could not manage pure water required during a surgery as the water pump gave out, leading to the halt of the service. As a result of this, the hos यो [...]

  • Nepal-Korea hospital starts cardiology service

    Bhaktapur, April 28: Nepal-Korea Friendship Hospital, Madhyapur Thimi, Bhaktaur has launched the cardiology services. The service was started from Thursday at an investment of Rs 4 million received under the Infrastructure Development Programme of the Ministry of Federal Affairs and Local Development and the Madhyapur Thimi Municipality, Hospital Director DK Raushan said. https://youtu.be/tA0p यो [...]

  • After 40 there is a high chances to have heart attack: Dr. Bhattarai

    Dr. Anil Bhattrai is a Professor of Manamohan cardiovascular and transplant centre at Tribhuwan University, Institute of Medical Science studies, Teaching Hospital. The explanation here in is made on Dr. Bhattarai. The young cardiac surgeon of Nepal: *What are symptoms of a heart attack? What are the risk factors of heart disease? Ans: Symptoms of the heart attack are: left sided chest pain, यो [...]

  • Malaria infected increasing by 2,000 every year

    Kathmandu, April 25: Around 2,000 lab-testedmMalaria patients are being detected in Nepal every year. According to the doctors, the malaria is caused by the bites of infected female anopheles mosquito and the pregnant women and children below five are more prone to its infections. Epidemiology and Disease Prevention Division Director Dr Baburam Marasini said the disease prevention measures यो [...]

TECHNOLOGY

GSM Mobile World Congress fruitful: Minister Karki

KATHMANDU, March 13: Minister for Information and Communications, Surendra Kumar Karki, has returned ...

Nepali team finds six new asteroids

KATHMANDU, March 7: The Nepal Asteroid Search Campaign – 2017 held from January 19 to February 18 ha ...

HEALTH

MODEL

Panty and secret part of the actress when look … .. (pictures)