200 Million Indians Suffer From High Blood Pressure: Global Study

November 17, 2016

London, Nov 17: The number of people with high blood pressure has almost doubled in 40 years to over 1.1 billion worldwide, scientists said, with the burden of the condition shifting from the rich to the poor. BP-696x428

In the largest study of its kind analyzing blood pressure in every nation between 1975 and 2015, the scientists said that it has dropped sharply in wealthy countries – possibly due to healthier diets and lifestyles – but risen in poorer ones.

The increases are especially significant in Africa and South Asia, the researchers said, and could be partly due to poor nutrition in childhood.

High blood pressure, also known as hypertension, puts extra strain on the blood vessels and major organs such as the heart, brain and kidneys. It is the world’s top cause of cardiovascular disease, which leads to strokes and heart attacks, and is estimated to cause 7.5 million deaths a year worldwide.

Led by World Health Organisation researchers working with hundreds of scientists internationally, this study covered blood pressure measurements from nearly 20 million people and was published in The Lancet medical journal.

In Europe, Britain had the lowest proportion of people with high blood pressure in 2015. South Korea, the United States and Canada had the lowest hypertension rates in the world.

More than half the world’s adults with high blood pressure in 2015 lived in Asia, the study estimated. Some 226 million people in China have high blood pressure, it said, as do 200 million in India.

“High blood pressure is no longer related to affluence – as it was in 1975 – but is now a major health issue linked with poverty,” said Majid Ezzati, a professor at Imperial College London’s school of public health.

He said that while he could not be sure of why the data showed high blood pressure as more of a problem in poorer countries, it may be partly due to overall better health and more consumption of fruit and vegetables in wealthy societies.

In rich countries, the condition is also caught more frequently and earlier, and managed more effectively with medicines, Ezzati said.

Blood pressure is defined by two numbers – systolic pressure, which represents the force with which the heart pumps blood into the blood vessels, and diastolic pressure, a measure of the resistance to the blood flow in the body’s blood vessels.

Both numbers are measured in millimetres of mercury (mmHg). High blood pressure is defined as 140/90 mmHg or higher.

The condition is caused by a number of factors including having a diet high in salt and low in fruit and vegetables, and not taking enough exercise.

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Your diet can impact your mental health, suggests Study

Agencies

January 4,2020

Washington D.C., Jan 3: A new study has found out that diet significantly affects the mental health and well being of an individual.

The study was published in the journal European Neuropsychopharmacology.

"We have found that there is increasing evidence of a link between a poor diet and the worsening of mood disorders, including anxiety and depression. However, many common beliefs about the health effects of certain foods are not supported by solid evidence," said the lead researcher, Professor Suzanne Dickson.

According to the researchers, the link between diet and mental health can be firmly established in certain cases like that of the ability of a ketogenic diet being helpful for children with epilepsy and the impact of vitamin B12 deficiency on poor memory, depression and fatigue.

"With individual conditions, we often found very mixed evidence. With ADHD for example, we can see an increase in the quantity of refined sugar in the diet seems to increase ADHD and hyperactivity, whereas eating more fresh fruit and vegetables seems to protect against these conditions," said Dickson

But there are comparatively few studies, and many of them don't last long enough to show long-term effects," added Dickson.

The study further concludes that some food items can be associated with treatment and the betterment of certain mental health conditions.

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Study links children's mental health to sleep duration

Agencies

February 10,2020

Washington D.C, Feb 10: Children's vulnerability towards depression, anxiety, impulsive behaviour, and poor cognitive performance could be determined by considering the hours of sleep they manage to get.

Sleep states are active processes that support the reorganisation of brain circuitry. This makes sleep especially important for children, whose brains are developing and reorganising rapidly.

In a study by researchers from the University of Warwick -- recently published in the journal Molecular Psychiatry -- cases of 11,000 children aged between 9 and 11 years from the Adolescent Brain Cognitive Development dataset were analyzed to find out the relationship between sleep duration and brain structure.

The study was carried out by researchers Professor Jianfeng Feng, Professor Edmund Rolls, Dr. Wei Cheng and colleagues from the University of Warwick's Department of Computer Science and Fudan University.

Measures of depression, anxiety, impulsive behaviour and poor cognitive performance in the children were associated with shorter sleep duration. Moreover, the depressive problems were associated with short sleep duration one year later.

The reduced brain volume of areas such as orbitofrontal cortex, prefrontal, and temporal cortex, precuneus, and supramarginal gyrus was found to be associated with the shorter sleep duration.

Professor Jianfeng Feng, from the University of Warwick's Department of Computer Science, comments: "The recommended amount of sleep for children 6 to 12 years of age is 9-12 hours. However, sleep disturbances are common among children and adolescents around the world due to the increasing demand on their time from school, increased screen time use, and sports and social activities."

A previous study showed that about 60 per cent of adolescents in the United States receive less than eight hours of sleep on school nights.

Professor Jianfeng Feng further added: "Our findings showed that the total score for behavior problems in children with less than 7 hours sleep was 53 per cent higher on average and the cognitive total score was 7.8 per cent lower on average than for children with 9-11 hours of sleep. It highlights the importance of enough sleep in both cognition and mental health in children."

Professor Edmund Rolls from the University of Warwick's Department of Computer Science also commented: "These are important associations that have been identified between sleep duration in children, brain structure, and cognitive and mental health measures, but further research is needed to discover the underlying reasons for these relationships."

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