Digit ratio and indicator to personal optimal Testosterone level?

 from elsevierhealth.com[/URL][/B][/B][/B]

[B][B][B][B][URL="http://www.sciencedirect.com/science/article/pii/S037837820400012X"]2nd to 4th [B]digit ratios[/B], fetal testosterone and estradiol[/URL][/B][/B][/B][/B]

[B][B][B]S Lutchmaya, [URL="https://scholar.google.com/citations?user=4GAQ-RUAAAAJ&hl=en&oi=sra"]S Baron-Cohen[/URL], P Raggatt… - Early human …, 2004 - Elsevier[/B][/B][/B]
[B][B][B][B]... indirectly influence the prenatal production of testicular androgen and (b) the development of
the [B]digits [1] and [B]... relate to gonad function [3]. One likely candidate for such a link is the [B]ratio
between the length of the 2nd (the “index” [B]finger) and 4th (the “ring” [B]finger) [B]digit ([B]2D:[B]4D). [B]...[/B][/B][/B][/B][/B][/B][/B][/B][/B][/B][/B][/B][/B]
[B][B][B][URL="https://scholar.google.com/scholar?cites=6647825277491724870&as_sdt=5,44&sciodt=0,44&hl=en"]Cited by 630[/URL] [URL="https://scholar.google.com/scholar?q=related:RsLBQd7RQVwJ:scholar.google.com/&hl=en&as_sdt=0,44&as_vis=1"]Related articles[/URL] [URL="https://scholar.google.com/scholar?cluster=6647825277491724870&hl=en&as_sdt=0,44&as_vis=1"]All 13 versions[/URL] [URL="https://scholar.google.com/scholar?q=2D:4D+digit+ratio&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwj1nPvBgJfMAhVBOiYKHYgwCq8QgQMIGzAA#"]Cite[/URL] [URL="https://scholar.google.com/scholar?q=2D:4D+digit+ratio&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwj1nPvBgJfMAhVBOiYKHYgwCq8QgQMIGzAA#"]Save[/URL][/B][/B][/B]


[B][B][B][B][URL="http://onlinelibrary.wiley.com/doi/10.1002/ajhb.20603/full"]Endurance running and [B]digit ratio [/B]([B]2D[/B]: [B]4D[/B]): implications for fetal testosterone effects on running speed and vascular health[/URL][/B][/B][/B][/B]

[B][B][B]JT Manning, L Morris, N Caswell - American Journal of Human …, 2007 - Wiley Online Library[/B][/B][/B]
[B][B][B]Abstract There is anatomical and physiological evidence that endurance running (ER), ie, 
running one or more kilometers using aerobic metabolism, originated early in the evolution 
of Homo, and the consequences of early selection for ER may be important in modern [B]...[/B][/B][/B][/B]
[B][B][B][URL="https://scholar.google.com/scholar?cites=4935428316989075933&as_sdt=5,44&sciodt=0,44&hl=en"]Cited by 131[/URL] [URL="https://scholar.google.com/scholar?q=related:3bGJwOcpfkQJ:scholar.google.com/&hl=en&as_sdt=0,44&as_vis=1"]Related articles[/URL] [URL="https://scholar.google.com/scholar?cluster=4935428316989075933&hl=en&as_sdt=0,44&as_vis=1"]All 3 versions[/URL] [URL="https://scholar.google.com/scholar?q=2D:4D+digit+ratio&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwj1nPvBgJfMAhVBOiYKHYgwCq8QgQMIGzAA#"]Cite[/URL] [URL="https://scholar.google.com/scholar?q=2D:4D+digit+ratio&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwj1nPvBgJfMAhVBOiYKHYgwCq8QgQMIGzAA#"]Save[/URL][/B][/B][/B]


[B][B][B][URL="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2883918/"][HTML] from nih.gov[/URL][/B][/B][/B]

[B][B][B][B][URL="http://link.springer.com/article/10.1007/s10508-007-9271-3"]Spatial ability and prenatal androgens: Meta-analyses of congenital adrenal hyperplasia and[B]digit ratio [/B]([B]2D[/B]: [B]4D[/B]) studies[/URL][/B][/B][/B][/B]

[B][B][B][URL="https://scholar.google.com/citations?user=fZ_ZqrMAAAAJ&hl=en&oi=sra"]DA Puts[/URL], [URL="https://scholar.google.com/citations?user=fEWuQs0AAAAJ&hl=en&oi=sra"]MA McDaniel[/URL], CL Jordan… - Archives of sexual …, 2008 - Springer[/B][/B][/B]
[B][B][B]Abstract Hormonal manipulations indicate that early androgens organize sex differences in 
spatial ability in laboratory rats. In humans, spatial ability is also sexually dimorphic, and 
information about the effects of prenatal androgens on spatial ability can be obtained from [B]...[/B][/B][/B][/B]
[B][B][B][URL="https://scholar.google.com/scholar?cites=4748614734637387675&as_sdt=5,44&sciodt=0,44&hl=en"]Cited by 149[/URL] [URL="https://scholar.google.com/scholar?q=related:m08_IfF35kEJ:scholar.google.com/&hl=en&as_sdt=0,44&as_vis=1"]Related articles[/URL] [URL="https://scholar.google.com/scholar?cluster=4748614734637387675&hl=en&as_sdt=0,44&as_vis=1"]All 17 versions[/URL] [URL="https://scholar.google.com/scholar?q=2D:4D+digit+ratio&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwj1nPvBgJfMAhVBOiYKHYgwCq8QgQMIGzAA#"]Cite[/URL] [URL="https://scholar.google.com/scholar?q=2D:4D+digit+ratio&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwj1nPvBgJfMAhVBOiYKHYgwCq8QgQMIGzAA#"]Save[/URL][/B][/B][/B]