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Thursday, January 29, 2015
Introducing LGM Promotions
Nutrition, mental health strongly linked: researchers
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Published in The Lancet Psychiatry today, leading academics state that as with a range of medical conditions, psychiatry and public health should now recognise and embrace diet and nutrition as key determinants of mental health.
Lead author, Dr Jerome Sarris from the University of Melbourne and a member of the International Society for Nutritional Psychiatry Research (ISNPR), said psychiatry is at a critical stage, with the current medically-focused model having achieved only modest benefits in addressing the global burden of poor mental health.
“While the determinants of mental health are complex, the emerging and compelling evidence for nutrition as a key factor in the high prevalence and incidence of mental disorders suggests that nutrition is as important to psychiatry as it is to cardiology, endocrinology and gastroenterology,” Dr Sarris said.
“In the last few years, significant links have been established between nutritional quality and mental health. Scientifically rigorous studies have made important contributions to our understanding of the role of nutrition in mental health,” he said.
Findings of the review revealed that in addition to dietary improvement, evidence now supports the contention that nutrient-based prescription has the potential to assist in the management of mental disorders at the individual and population level.
Studies show that many of these nutrients have a clear link to brain health, including omega-3s, B vitamins (particularly folate and B12), choline, iron, zinc, magnesium, S-adenosyl methionine (SAMe), vitamin D, and amino acids.
“While we advocate for these to be consumed in the diet where possible, additional select prescription of these as nutraceuticals (nutrient supplements) may also be justified,” Dr Sarris said.
“Maternal and early-life nutrition is also emerging as a factor in mental health outcomes in children, while severe deficiencies in some essential nutrients during critical developmental periods have long been implicated in the development of both depressive and psychotic disorders,” she said.
A systematic review published in late 2014 has also confirmed a relationship between ‘unhealthy’ dietary patterns and poorer mental health in children and adolescents. Given the early age of onset for depression and anxiety, these data point to dietary improvement as a way of preventing the initial incidence of common mental disorders.
Dr Sarris, an executive member of the ISNPR, believes that it is time to advocate for a more integrative approach to psychiatry, with diet and nutrition as key elements.
“It is time for clinicians to consider diet and additional nutrients as part of the treating package to manage the enormous burden of mental ill health,” he said.
Source
Follow these topics: Nutrition is Medicine, Psychiatry
Regular physical activity reduces depressive symptoms among both men and women with mild to moderate depression, notably among women
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Physical Activity, Gender Difference, and Depressive Symptoms
Jun Zhang M.S.1 and
Steven T. Yen Ph.D.2,*
Article first published online: 28 JAN 2015
DOI: 10.1111/1475-6773.12285
Objective
To investigate the roles of physical activity (exercise) and sociodemographic factors in depressive symptoms among men and women in the United States.
Data Source
2011 U.S. Behavioral Risk Factor Surveillance System (BRFSS).
Study Design
Principal Findings
Average treatment effects suggest physical activity ameliorates depressive symptoms among mildly and moderately depressed individuals, most notably among mildly depressed women. Gender differences exist in the roles of sociodemographic factors, with age, income, race, education, employment status, and recent mental health condition playing differentiated roles in affecting depressive symptoms.
Conclusions
Regular physical activity reduces depressive symptoms among both men and women with mild to moderate depression, notably among women.
Source
Follow these topics: Science Updates
Thursday, January 15, 2015
Lack of exercise responsible for twice as many deaths as obesity
Physical inactivity has been consistently associated with an increased risk of early death, as well as being associated with a greater risk of diseases such as heart disease and cancer. Although it may also contribute to an increased body mass index (BMI) and obesity, the association with early death is independent of an individual’s BMI.
To measure the link between physical inactivity and premature death, and its interaction with obesity, researchers analysed data from 334,161 men and women across Europe participating in the European Prospective Investigation into Cancer and Nutrition (EPIC) Study. Over an average of 12 years, the researchers measured height, weight and waist circumference, and used self-assessment to measure levels of physical activity. The results are published today in the American Journal of Clinical Nutrition.
The researchers found that the greatest reduction in risk of premature death occurred in the comparison between inactive and moderately inactive groups, judged by combining activity at work with recreational activity; just under a quarter (22.7%) of participants were categorised as inactive, reporting no recreational activity in combination with a sedentary occupation. The authors estimate that doing exercise equivalent to just a 20 minute brisk walk each day – burning between 90 and 110 kcal (‘calories’) – would take an individual from the inactive to moderately inactive group and reduce their risk of premature death by between 16-30%. The impact was greatest amongst normal weight individuals, but even those with higher BMI saw a benefit.
Using the most recent available data on deaths in Europe the researchers estimate that 337,000 of the 9.2 million deaths amongst European men and women were attributable to obesity (classed as a BMI greater than 30): however, double this number of deaths (676,000) could be attributed to physical inactivity.
Professor Nick Wareham, Director of the MRC Unit, adds: “Helping people to lose weight can be a real challenge, and whilst we should continue to aim at reducing population levels of obesity, public health interventions that encourage people to make small but achievable changes in physical activity can have significant health benefits and may be easier to achieve and maintain.” Source
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