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High-Salt Meals Impacts Cardiovascular Measures in 30 Minutes

Posted Nov 03 2012 10:08pm
Posted on Oct. 31, 2012, 6 a.m. in Cardio-Vascular Diet

Dietary salt is related to blood pressure , and cardiovascular disease and increased sodium intakes have been shown to impair vascular function.  Previously, Kacie Dickinson, from the University of Adelaide (Australia), and colleagues demonstrated that a high-salt meal can significantly raise flow mediated dilation, a measure of endothelial function, in as little as 30 minutes.  The team is exploring the mechanism behind this effect, with new evidence finding that plasma nitrate and nitrite remained steady after a high-salt meal, thus ruling out the nitric oxide pathway. 

Dickinson KM, Clifton PM, Keogh JB. “Endothelial function is impaired after a high-salt meal in healthy subjects.”  Am J Clin Nutr. 2011 Mar;93(3):500-5; and Dickinson et al, ESPEN Congress on Nutrition & Metabolism, October 2012.

  
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64 – A Healthy Curiosity
Researchers from the University of Alberta (Canada) found in 2005 that for 90% of the population, keeping the brain sharp as we age can be as simple as being and staying mentally inquisitive. The team found that people who are curious at a young age are more likely to be mentally active, and stay that way, as they age. In addition, people in their 70s and 80s who started incorporating activities to improve mental capacity at those ages could enjoy similar benefits to brain health. Some of the best activities that keep the mind active and curious include: reading, traveling, memorizing poetry, playing card games, doing crossword puzzles, learning how to play a musical instrument, taking classes, and surfing the Internet.
 
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