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#31
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Maximizing life expectancy/enjoyment
"Dr. Andrew B. Chung, MD/PhD" wrote:
Proton Soup wrote: On Tue, 07 Oct 2003 20:48:31 -0400, "Dr. Andrew B. Chung, MD/PhD" wrote: DRS wrote: Proton Soup wrote in message [...] Masturbate daily to lube the prostate and prevent cancer. Did you know that in medical circles prostate cancer is known as the priest's disease? It's true. Speaking as a physician, it is not true. Risk of prostate cancer is higher in folks with higher testosterone levels. Testosterone levels tend to be higher in folks that masturbate (or are otherwise sexually active) than folks who aren't. Sorry. This is what we're talking about. I'm sure more studies will follow. http://www.newscientist.com/news/news.jsp?id=ns99993942 Retrospective questionnaire type studies brought us the information that Vitamin E and C may prevent heart attacks. We now know better. If cigarette smoke carcinogens are concentrated in prostatic fluids (as an explanation for the cancer), the solution is to stop smoking instead of masterbating. Proton Soup Here's a review about prostate cancer from a more reputable peer-reviewed source: http://tinyurl.com/q4kl Since when is the British Journal of Urology International not a reputable, peer-reviewed source? And since when do things like "cigarette smoke carcinogens ... in prostatic fluids" have as much effect on prostate cancer as DHT levels and 5-alpha-reductase gene expression? |
#32
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Maximizing life expectancy/enjoyment
roger wrote:
On Tue, 07 Oct 2003 20:48:31 -0400, "Dr. Andrew B. Chung, MD/PhD" wrote: Speaking as a physician, it is not true. Risk of prostate cancer is higher in folks with higher testosterone levels. Testosterone levels tend to be higher in folks that masturbate (or are otherwise sexually active) than folks who aren't. Sorry. And now for a dissenting opinion: http://news.bbc.co.uk/1/hi/health/3072021.stm Roger See my response to an earlier post in the same thread. -- Dr. Andrew B. Chung, MD/PhD Board-Certified Cardiologist http://www.heartmdphd.com |
#33
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Maximizing life expectancy/enjoyment
In sci.med.nutrition Wayne S. Hill wrote or quoted:
Tim Tyler wrote: In sci.med.nutrition Ignoramus wrote or quoted: I am aware that there is some scant evidence that living on calorie restricted diet (1500 or so calories per day all the time) also can help one live longer. There's better evidence for that than for practically any other intervention. Maybe more evidence for it than all other interventions combined! I think this conclusion will be reversed when researchers realize that sarcopenia and osteopenia are much greater threats to longevity in people over, say, 60 years of age than bodymass per se. IOW, extrapolating animal models to humans is not reasonable here. ``Calorie Restriction Reduces Age-Related Muscle Loss'' - http://www.news.wisc.edu/view.html?get=4748 Osteopenia might be a bit of a problem. However I strongly suspect that a technological solution to this one is imminent, or is already in use - and thus that young people approaching CR should not be overly concerned about it. Low calorie intake is a minor risk factor anyway. Take your vitamin D, avoid your retinol, get a good dose of minerals, do weight bearing exercise, and you should not have too much to worry about. -- __________ |im |yler http://timtyler.org/ Remove lock to reply. |
#34
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Maximizing life expectancy/enjoyment
In sci.med.nutrition DRS wrote or quoted:
Did you know that in medical circles prostate cancer is known as the priest's disease? It's true. ? My sources say "priest's disease" - "non-specific prostatitis". -- __________ |im |yler http://timtyler.org/ Remove lock to reply. |
#35
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Maximizing life expectancy/enjoyment
In sci.med.nutrition Dr. Andrew B. Chung, MD/PhD wrote or quoted:
DRS wrote: Did you know that in medical circles prostate cancer is known as the priest's disease? It's true. Speaking as a physician, it is not true. Risk of prostate cancer is higher in folks with higher testosterone levels. Testosterone levels tend to be higher in folks that masturbate (or are otherwise sexually active) than folks who aren't. Sorry. Are you assuming testosterone is the *only* risk factor? That is unlikely to be the case. However, I don't think prostate cancer /is/ known as the priest's disease ;-) -- __________ |im |yler http://timtyler.org/ Remove lock to reply. |
#36
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Maximizing life expectancy/enjoyment
In sci.med.nutrition roger wrote or quoted:
"Dr. Andrew B. Chung, MD/PhD" wrote: Mice live *twice* as long in captivity if they are given only half as much as they would eat ad libitum. Not only do they live longer but they a physically more active in their older age. Imagine humans doubling their lifespan to 150 years and playing tennis when they are 120 years old. You certainly have an active imagination. There is no objective evidence that caloric restriction in humans would have the same effect as in mice. It almost certainly won't make us live to 150. However there's good evidence that it will extend our lives - since it has done so in practically every other animal tested. -- __________ |im |yler http://timtyler.org/ Remove lock to reply. |
#37
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Maximizing life expectancy/enjoyment
"Tim Tyler" wrote in message ... In sci.med.nutrition Wayne S. Hill wrote or quoted: Tim Tyler wrote: In sci.med.nutrition Ignoramus wrote or quoted: I am aware that there is some scant evidence that living on calorie restricted diet (1500 or so calories per day all the time) also can help one live longer. There's better evidence for that than for practically any other intervention. Maybe more evidence for it than all other interventions combined! I think this conclusion will be reversed when researchers realize that sarcopenia and osteopenia are much greater threats to longevity in people over, say, 60 years of age than bodymass per se. IOW, extrapolating animal models to humans is not reasonable here. ``Calorie Restriction Reduces Age-Related Muscle Loss'' - http://www.news.wisc.edu/view.html?get=4748 Osteopenia might be a bit of a problem. However I strongly suspect that a technological solution to this one is imminent, or is already in use - and thus that young people approaching CR should not be overly concerned about it. Low calorie intake is a minor risk factor anyway. Take your vitamin D, avoid your retinol, get a good dose of minerals, do weight bearing exercise, and you should not have too much to worry about. You forgot to mention vitamin K at doses equal to or greater than a milligram for maximum benefits. The so-called RDA for K is just way low. "Low" protein diets are associated with reduced bone strength and density in the elderly. DHEA supplements should help preserve bone density as it is converted to estrogen in the bone. In men replacement testosterone is also useful in preserving bone mass. As I recall, CR benefits disappears in animals when they return to an ad libum diet. Which suggest one could be hunger for a life time and then go on a diet vacation can lose the effect:-( Taking 10 milligrams of vitamin K per day.... .........................................William A. Noyes |
#38
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Maximizing life expectancy/enjoyment
"Dr. Andrew B. Chung, MD/PhD" wrote in message ... DRS wrote: Proton Soup wrote in message [...] Masturbate daily to lube the prostate and prevent cancer. Did you know that in medical circles prostate cancer is known as the priest's disease? It's true. Speaking as a physician, it is not true. Risk of prostate cancer is higher in folks with higher testosterone levels. Testosterone levels tend to be higher in folks that masturbate (or are otherwise sexually active) than folks who aren't. Sorry. However, prostate cancers are more aggressive in patients who have had lower testosterone levels. Or so goes the clinical rumor. PMID 11966629 PMID 12386917 If the testosterone levels are elevated in respect to estrogen levels (please recall men make some estrogen also......a comment for the lurkers), the older male will be less apt to suffer from an enlarged prostate. Don't read the Merck Proscar adverts as the gospel.......anyway saw palmetto is the better choice. Indeed, the high testosterone association likely an instance of false correlation. If memory serves me, blacks tend to have slightly higher levels of testosterone but it is the dark skin and reduced vitamin D status that yields the more aggressive prostate cancers. And I suspect one poster is anti-masturbation and the other is pro-masturbation. Both views represent biases and (I suspect) each has its own supporting urban myth. A cardiologist is not an endocrinologist ...... ...tongue firmly in cheek.....William A. Noyes |
#39
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Maximizing life expectancy/enjoyment
Tim Tyler wrote:
Wayne S. Hill wrote: Tim Tyler wrote: Ignoramus wrote: I am aware that there is some scant evidence that living on calorie restricted diet (1500 or so calories per day all the time) also can help one live longer. There's better evidence for that than for practically any other intervention. Maybe more evidence for it than all other interventions combined! I think this conclusion will be reversed when researchers realize that sarcopenia and osteopenia are much greater threats to longevity in people over, say, 60 years of age than bodymass per se. IOW, extrapolating animal models to humans is not reasonable here. ``Calorie Restriction Reduces Age-Related Muscle Loss'' - http://www.news.wisc.edu/view.html?get=4748 In rats. IN RATS! RATS! RATS!RATS!RATS!RATS!RATS!RATS! For cryin' out loud, studies have shown that elderly people increase their lean body mass only with a combination of increased protein intake and increased exercise (not one of these alone). I sincerely doubt there's any evidence that shows that feeding people less will reduce their loss of lean muscle mass. If it's true in rodents, doesn't that tell you something about using rats as a model of elderly people? Osteopenia might be a bit of a problem. However I strongly suspect that a technological solution to this one is imminent, or is already in use - and thus that young people approaching CR should not be overly concerned about it. Low calorie intake is a minor risk factor anyway. Take your vitamin D, avoid your retinol, get a good dose of minerals, do weight bearing exercise, and you should not have too much to worry about. Hey, you're talking about trying to live to unheard of ages here. Once someone gets beyond the age of about 70, the number 1 concern is maintaining mobility. If you consider that the main factors in maintaining mobility are maintaining muscle and bone mass, why (oh, why!) would you consider it logical to tell people to eat much less, and to claim that the great body of research supports this contention? -- -Wayne |
#40
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Maximizing life expectancy/enjoyment
roger wrote:
On Tue, 07 Oct 2003 20:38:32 -0400, "Dr. Andrew B. Chung, MD/PhD" wrote: Mice live *twice* as long in captivity if they are given only half as much as they would eat ad libitum. Not only do they live longer but they a physically more active in their older age. Imagine humans doubling their lifespan to 150 years and playing tennis when they are 120 years old. You certainly have an active imagination. There is no objective evidence that caloric restriction in humans would have the same effect as in mice. There is no objective evidence that it won't. Roger I am not an animal. I am a man. Elephant Man He like we *are* animals. To be more precise, we like mice are mammals. -- Dr. Andrew B. Chung, MD/PhD Board-Certified Cardiologist http://www.heartmdphd.com/ |
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