|This article will teach you how to make sure you'll see your great, great grand children.|
This is yet by no means the only example. The "paleo movement", as bizarre and disfigured as it may have become does still exemplify that the same can be said of "healthy eating", as well.
There have always been people who (instinctively?) knew how to do it - hell, even the hailed Mediterranean Diet is no invention of brainy scientists (certainly not of dumb dietitians). And when we are honest, we don't need websites like Longecity and tons of useless supplements to make the most of our genetic longevity potential: We all know what we should do, but unfortunately, many of us tend to forget that we don't do what it takes to join the ranks of those people about whom Marilynn Larkin wrote in ther 1999 paper "Centenarians point the way to healthy ageing" (Larkin. 1999).
Today's SuppVersity article is an homage to these people and the well-known but often overlooked research on what helps and hinders us from joining the ranks of people like Betsy Baker (supposedly 113, when she died in 1955), Marie-Louise Meilleur (supposedly 117, when she died in 1988) or Jiroemon Kimura (supposedly 116, when he died last year). I mean, they must have done many things right and only few things wrong, right? Based on the contemporary evidence, I've compiled a list of rules. I guess, neither Betsy or Marie-Louise, nor Jiroemon will have followed all of them to the "T", but hey, this leaves room for you to decide whether you'd rather indulge in one or another passion or stick to all of them to the "T" top Marie-Louise's 117 or Jiroemon's 116 years of age :-)
- Use the available medical care to your advantage: Within the health and fitness community, the things our regular doctors can do for us have gotten a surprisingly bad rep. It does however stand out of question that the availability and use of modern medicine is one of the cornerstones of the ever-increasing longevity in centennials and other healthy elderly. From basic treatments to complicated operations, all these things the availability of which we usually take for granted has helped us (and the living centenarians) to do what Thomas Perls calls "to ‘compress morbidity’ and live most of our lives in good health, with only a short period of ill health at the end." (Perls. 1999)
Figure 1: Luckily, your place of birth is not the only determinant of life expectancy; map depicts life expectancy (in years) at birth (created by Panagiotis V. Lazaridis based on WHO & CIA data in 2008)
- Don't smoke, or quit smoking: I know this should be obvious, but I guess too many people still believe that they must belong to the lucky few Lewin and Crimmins, the authors of a recent paper with the intruiging title "Not All Smokers Die Young: A Model for Hidden Heterogeneity within the Human Population." (Lewin. 2014) are interested in. Contrary to these (allegedly) genetic outliers, the majority of us will suffer a significant reduction in life expectancy. Estimations of the number of years you'll lose range from a handful of years to up to 25% (Rogers. 1991). For a US citizen the latter would equal almost 16 years! Years, of which Susan T. Stewart et al. (2009) say that the average 18-year-old may reclaim 3.76 life-years and, more importantly, 5.16 quality-adjusted years, in which he or she is not hospitalized and wasting away, if they managed to avoid the getting overweight / obese instead.
Eat fish, if you can't stop smoking: The -50% reduction in mortality risk for fish eating heavy smokers vs. people who smoke and have a low fish consumption as it was reported by Rodriguez et al. in 1996, actually raises the question whether it wouldn't make more sense to put images of deliciously prepared salmon on cigarette packets - instead of the tar-black lungs and foul body parts, obviously.
- In fact, the increase in BMI after smoking sessation "overwhelmed the positive effects of declines in smoking in multiple scenarios" Stewart et al. calculated and reduced the benefits for an 18-year old to 0.71 years or 0.91 (Stewart. 2009).
But don't worry, other studies report much more beneficial effects. Taylor et al. (2002), for example, estimate that the life expectancy among smokers who quit at age 35 will exceeded that of continuing smokers by 6.9 to 8.5 years for men and 6.1 to 7.7 years for women. And in spite of the fact that early smokers will obviously realize greater gains in life expectancy, even those even those who quit much later in life gained some benefits: among smokers who quit at age 65 years, men gained 1.4 to 2.0 years of life, and women gained 2.7 to 3.7 years.
- Avoid drinking alcohol in amounts >0.5 glasses of wine per day: Notwithstanding the overcited epidemiological evidence which suggests that a moderate alcohol consumption will have beneficial effects on your life-expectancy, the margin between "just enough" and "already too much" is simply too narrow for me to suggest you drink more than the literal half glass of wine that's supposed to lower the all-cause mortality risk of women by ~20-25% (Streppel. 2009).
Table 1: Relative Risk for Major Chronic Disease Categories, by Gender and Average Drinking Category (Rehm. 2002)
And just in case the ambiguity of data ain't reason enough for you to let go of all alcoholic beverages on at least360 of 365 days of the year, the data in Table 1 may convince you.
If you take a closer look at "Drinking Category I", where you'll find all the women who consume 0–19.99 g pure alcohol and all the men who consume 0–39.99 g pure alcohol every day (a glass of wine has ~13g), you will see that alcohol increases the risk of liver cirrhosis by 26%, hypertensive diseases and other CVD by 40% and 50%, is associated with 34% and 23% higher risk of epilepsy for women and men, respectively and increases the risk of all cancers esp. those of the esophagus (+80%) significantly.
I am not sure about you, but for me this alone would be enough to get my sleep, diet and exercise regimen in check instead of trying to use alcohol as a means to reduce my CVD risk.
- Attend to relationships and friends: Individuality has become on of the / the (choose for yourself) highest good(s) of Western civilization and few people are aware that we are paying a very high price for that. The influence of social relations on mortality is, after all, well
documented. A meta-analysis of 148 studies (308,849
participants followed for an average of 7.5 years) confirms that the quality of our social networks significantly predicts mortality (Holt-Lunstad. 2010).
Figure 2: Weighted avg. effect sizes across different measures of social relationships (Holt-Lunstad. 2010).
It is yet still unclear whether specific types of relationships are more advantageous than others. Giles et al. (2005) showed that the beneficial association between social networks and survival among elderly people may be restricted to relationships with friends and confidants rather than with children and relatives. In a meta-analysis of 53 prospective observational studies on older adults, marriage or support from a partner was found be a significant independent predictor of survival; the overall reduction in mortality risk was 9–15%. However, this association was statistically significant in only half of the studies (Manzoli. 2007).
Social support is the also key to get lean and stay lean... at least for men In view of the fact that staying lean is one of the most important longevity promoters, these days, it's actually only logical that a lack of emotional support is associated with a 98% increased obesity risk. What's astonishing is that this is not the case in women, where divorce and thus "being back on the market" will actually reduce a woman's risk of becoming obese by a whopping 61% (Oliveira. 2013)!
- As Rizzuto & Fratiglioni (2014) point out, one hypothesis suggests that strong social connec
tions can buffer significant stress and protect against ne
ative stress-related outcomes:
"People might be protected from adopting stress-related lifestyle choices that are detrimental to health, such as smoking, excessive alcohol consumption and sleep loss." (Rizzuto. 2014)The main-effect hypothesis postulates that social support is beneficial regardless of the stress level a person is experiencing; in other words, social support can act protectively even before a stressor is experienced. For instance, persons with social support could be influenced to engage in protective be haviors such as exercise.
Moreover, having a wide range of social ties also provides multiple sources of information that could result in more effective use of available health care and services (Cohen. 2004). No wonder, you have, after all, read only a couple of days ago that education is what protects "poor women from fattening effects of rising wealth" in the SuppVersity Facebook News (read more).
- Stay lean and be avtive, God damnit! There is this unfortunate and die-hard myth of something scientists refer to as the obesity paradox. A term that is misrepresented by overweight journalists and doctors and misunderstood by the ever-increasing number of obese average Joes, for whom the misleading connotations of terms such as "healthy obese" are downright life-threatening.
And this is not an exaggeration, by the way. If you look at the 30% increase in mortality risk Whitlock et al. (2009) calculated based on a meta-analysis of data from 57 prospective studies that included almost 900,000 adults for every 5-point increase in BMI the attribute "life-threatening" is by no means an exaggeration.
- Although the proportional increase was greater at younger ages (35–59 years), the corresponding increase in mortality for those in their 70s was
nearly 30%, and for those in their 80s, it was still 15% - the notion that older people would benefit from being fat is thus simply hilarious.
What's not hilarious, though, is that a certain amount of healthy, well-distributed body fat that's complemented by a decent amount of life-extending muscle mass (20% reduction in all cause-mortality for men >55years w/ a decent amount of lean mass; see SuppVersity Facebook News | learn more) and a corresponding BMI between 20-27 offers enough energy reserves to draw on, when you're sick and old. It is thus also not surprising that being slightly overweight (obesity starts with BMI >30) is not a risk factor for people aged ≥ 65 years (Heiat. 2001) and certainly better than being what scientists call "underweight", when it's actually only "undermuscled" for the vast majority of elderly individuals who are affected.
- As a SuppVersity reader you know: The risk for both, being underweight and overweight can be reduced if not nullified by a high amount of daily physical activity (the 10,000 steps mantra) and working out regularly. Being moderately active, alone, for example, was found to be associated with a 3.6x higher chance of "successful [=healthy] aging" in a recent study from the University of Ibadan - for regular vigorous activity, the chance of aging healthily increased by 711% (Gureje. 2014)!
- Miscellaneous, but worth mentioning: This is where I will list everything that popped up on my radar while doing the research, but did not really appear to make a good standalone item in the list. Things like having sex, for example. At least twice a week, to make sure that you don't increase your risk of fatal coronary heart disease by 180%, guys (Ebrahim. 2002). And ther results Smith et al. presented 5 years before are even more promising: According to their study, each increase of 100 orgasms per year is associated with a 46% reduction in all-cause mortality risk (Smith. 1997)!
"[...]female centenarians likely exploited a healthier life-style and more favorable environmental conditions, owing to gender-specific cultural and anthropological characteristics" (Franceschi. 2000)... and do thus depend to a lesser extend on having the right mtDNA haplogroups, Thyrosine Hydroxilase, and IL-6 genes than men.
|Figure 5: Yes, genes matter, but there is more (Franceschi. 2003)|
Other genes that have been highlighted as factors that contribute to exceptional longevity are certain variants of the FOXO3A gene (Flachsbart. 2009), ...
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