如果我说女人比男人矮，女人比男人长寿，所以矮人比高人长寿，你同意吗？桔子要同桔子比，苹果要同苹果比。多因素同时比较很难得出可靠结

看看人家是如何研究的（介绍链接）：8000多日裔美国人，居住的地点类似，生活方式类似，身高等于或高于165厘米的和等于或低于158厘米的比较。

“We split people into two groups – those who were 5-foot-2 and shorter, and 5-4 and taller,” said Dr. Bradley Willcox, one of the investigators for the study and a UH Mānoa Professor at the John A. Burns School of Medicine’s (JABSOM's) Department of Geriatric Medicine. “The folks that were 5-2 and shorter lived the longest. The range was seen all the way across from being 5-foot tall to 6-foot tall. The taller you got, the shorter you lived.”

Researchers at the Kuakini Medical Center, JABSOM and U.S. Veterans Affairs worked on the study, which was recently published in PLOS ONE, a peer-reviewed medical journal.

The researchers showed that shorter men were more likely to have a protective form of the longevity gene, FOXO3, leading to smaller body size during early development and a longer lifespan. Shorter men were also more likely to have lower blood insulin levels and less cancer.

 

 

所有跟帖： 

• 这只能说明矮和长寿的共同原因都是女人。但说明不了矮和长寿有因果关系。 -羽衣甘蓝- ♂ (0 bytes) () 02/14/2017 postreply 06:33:09

• 女人矮是对的，女人长寿也是对的。矮人长寿是错的，长寿人矮也是错的。 -羽衣甘蓝- ♂ (200 bytes) () 02/14/2017 postreply 06:37:10

• 我用此例来反驳lz跨种族比较所得出的结论不成立。 -吃与活- ♂ (272 bytes) () 02/14/2017 postreply 06:51:47

• 多因素的因果关系太复杂了。很多结论其实都是相关性的结论。因果关系就看每个人自己的信仰了。 -羽衣甘蓝- ♂ (0 bytes) () 02/14/2017 postreply 06:58:19

• 醉酒导致车祸，醉酒也致乱性。但不说明车祸是乱性的原因，也不说明乱性是车祸的原因， -羽衣甘蓝- ♂ (104 bytes) () 02/14/2017 postreply 06:46:10

• A导致B，A也导致C，不能说明B和C有任何关系。A导致B，B导致C，则A一定导致C。两者截然不同。 -羽衣甘蓝- ♂ (32 bytes) () 02/14/2017 postreply 06:53:41