SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Pastimes : The New Qualcomm - write what you like thread.
QCOM 176.31+1.9%Jan 5 3:59 PM EST

 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Neeka who wrote (5734)2/12/2003 3:50:13 AM
From: Maurice Winn   of 12247
 
Epidemiologists and others doing studies are so sloppy!

<However, even after all the factors were considered, researchers found they were had a 70% increased risk of having a stroke and a 30% increased risk of dying from any cause. >

Actually, it might be just the people reporting it being unable to understand research - journalists are notable for failing to understand things. Especially Wall Street Journalists.

If they would take a mechanistic and causal relationships approach to problems, they'd get to the guts of the matter.

It's obvious that shaving isn't going to affect stroke rates.

Shaving less than once a day means shaving every second day, or less [= layabout unshaven slobs]. The study was started 20 years ago, as they say, at a time when clean-shaven was the prevailing trend. They also say they excluded people with beards.

The people who didn't shave regularly were in the lower socioeconomic groups. Which means they had lower IQs. Which means their dietary and other habits were less conducive to longevity.

Some confounding variables the researchers should also consider [but were not reported as considering] include:

Vitamin and mineral intake [measured in urine or blood],
Total cholesterol level [to avoid the need to ask about dietary habits] and other lipid levels.
% body fat
Asprin intake
Ethanol intake
Stroke type [blockage or leakage]

The 500 infrequent shavers were found to smoke disproportionately. People who smoke also have other health-destroying habits [which they might not be aware of], so it's not surprising that they get strokes.

The researchers didn't consider the confounding variables which would affect stroke rates.

Shaving is irrelevant.

If lack of testosterone is such a big deal, one would wonder how come women last almost a decade longer than men. That suggests [without digging up the wide range of confounding variables] that low testosterone levels are a good indicator for longevity, not the reverse.

An obvious mechanism making low testosterone a good thing for longevity is that testosterone is a brain poison which makes males crazily competitive, risk-taking, confrontational and daring - which is good for reproductive purposes in a Hobbesian world, but bad for individual longevity.

Mqurice
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext