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ras

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  1. I think the "take home" message for the obese is to both right-size calories as well as optimize the microbiome (at least as much as this can be done at this early stage of research into the subject). Here's a short article from Nature Research:
  2. This fascinating article describes the relationship between your immune system and your microbiome and how important this is in terms of what you digest, what you don't, and whether you become obese: https://www.theatlantic.com/health/archive/2019/08/inflammations-immune-system-obesity-microbiome/595384/
  3. The latest issue of Nature reports that "Genetic and pharmacological inhibition of ACMSD boosts de novo NAD+ synthesis and sirtuin 1 activity, ultimately enhancing mitochondrial function." The abstract is available here for non-subscribers. A related complete article by the lead author of the Nature report is available here for download. According to its abstract: "Altered NAD + metabolism is associated with aging and many pathological conditions, such as metabolic diseases and disorders of the muscular and neuronal systems. Conversely, increased NAD + levels have shown to be beneficial in a broad spectrum of diseases. Here, we review the fundamental aspects of NAD + biochemistry and metabolism and discuss how boosting NAD + content can help ameliorate mitochondrial homeostasis and as such improve healthspan and lifespan."
  4. Two recent posts (one by Al Pater, the other by me) suggest that time-boxing (eating within a limited time window) may be a superior health and longevity strategy. Both studies aren't strictly applicable to CR Society Society members, who are likely neither obese nor mice, but certainly suggestive. The Al Pater post (an obesity study, posted and emailed today, September 13th) found that daily fasting did a better job of preserving lean muscle mass than intermittent fasting. My post (on September 6th) reported that, for mice, "increasing time between meals improved the overall health of male mice and lengthened their lives compared to mice that ate more frequently" and "showed that mice who ate one meal per day, and thus had the longest fasting period, seemed to have a longer lifespan and better outcomes for common age-related liver disease and metabolic disorders.” Some of our younger members may be able to stomach one big meal a day. Older members may find that if they try this, they will become GERD cases. For these members, a time-box method may be more appropriate (e.g., confining the day's eating within a time box of two to eight hours maximum). -Richard Schulman
  5. " A group of scientists from the NIA [National Institute on Aging], the University of Wisconsin-Madison and the Pennington Biomedical Research Center in Louisiana found that increasing time between meals improved the overall health of male mice and lengthened their lives compared to mice that ate more frequently. Perhaps even more surprisingly, the health benefits were seen regardless of what the mice ate or how many calories they consumed." Excerpted from an article in USA Today, which may be read here. -Richard Schulman Founders Broadsheet
  6. https://www.genengnews.com/gen-news-highlights/aging-cells-rejuvenated-when-hydrogen-sulfide-gives-splicing-factors-a-lift/81256109
  7. Good non-technical article on what's wrong with p=.05: https://newfoodeconomy.org/nutrition-research-statistics-problem/ -Richard Schulman Editor, https://foundsbroadsheet.com
  8. The NY Times has a general-interest-level article on the crucial role the cell nucleolus plays in aging: https://www.nytimes.com/2018/05/20/science/nucleolus-cells-aging.html?rref=collection%2Fsectioncollection%2Fscience The technical article is here: https://www.cell.com/trends/cell-biology/fulltext/S0962-8924(18)30063-1 - Richard Schulman Editor, https://foundersbroadsheet.com
  9. Some nice, unexpected PR on behalf of CR brainpower: https://www.quantamagazine.org/decades-old-graph-problem-yields-to-amateur-mathematician-20180417/ -- Richard Schulman, Editor, Founders Broadsheet
  10. ras

    sex-restriction and longevity

    This article explains why men should try to tamp down testosterone after they've sown their wild oats: http://nautil.us/issue/49/the-absurd/why-men-dont-live-as-long-as-women
  11. The European Union recently published a report claiming that organic food is better for your brain: http://tinyurl.com/ydyukhgu Inasmuch as some of the European Union's scientific findings have been politicized (e.g., its ban on genetic foods, without evidence), I wanted to get a second opinion on the subject. A Scientific American blog is excellent for this purpose: http://tinyurl.com/jzsc9w5 My present take is that much more research is called for -- fine-grained research regarding specific pesticides, their application levels at the farm, and the relative facility of consumers flushing them away with running water.
  12. Hang in, there aging calorie restricters. Help may be on the way (eventually, alas): http://tinyurl.com/zy5hnj8 ("DNA-editing breakthrough could fix 'broken genes' in the brain, delay ageing and cure incurable diseases" -- Independent [uK])
  13. Here is the press release from the University of Birmingham, where the research took place: http://tinyurl.com/hd3qoog
  14. Hey, tipplers! This article suggests it's time for you to get out on the running track, or other aerobic equivalent, to prevent or remediate, damage done to your topside. http://www.huffingtonpost.com/dr-douglas-fields/alcohol-brain-damage_b_3857430.html
  15. Answer: apparently not, because of methodological bias in most of the studies. The few studies not biased don't show the supposed beneficial J-curve of modest alcohol consumption. Popular summary: http://www.eurekalert.org/pub_releases/2016-03/joso-imd031616.php The full article: http://dx.doi.org/10.15288/jsad.2016.77.185 Is wine, red or otherwise, an exception? The study above does not address that question, but the odds against a wine benefit seem longer than they were before. -Richard Schulman
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