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Finger Lengths Linked To Voluntary Exercise

Date:
September 19, 2008
Source:
Public Library of Science
Summary:
If you find yourself lacking in motivation to go for a run or hit the gym, you may want to check your fingers. According to a new study there is a direct correlation between digit length and voluntary exercise.

If you find yourself lacking in motivation to go for a run or hit the gym, you may want to check your fingers. According to a joint University of Alberta/ University of California- Riverside research study, there is a direct correlation between digit length and voluntary exercise.

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The study also casts some doubt on a previously released study which linked digit length and male aggression.

While both situations were first thought to have been caused by exposure to elevated levels of prenatal testosterone in the womb, research conducted using lab mice yielded no concrete evidence to support that original hypothesis.

The new study, conducted using 1,000 white mice, seems to support a stronger connection between digit length, voluntary exercise and high levels of prenatal stress hormones, which was indicated by the difference in activity level between the control mice and the selectively-bred active mice.

Given the results, the findings suggest that prenatal stress rather than prenatal testosterone levels in the womb, forms a component of the inherent desire for physical activity.

"The research shows a link, or relationship, between the brain, behaviour and personality traits and the shape of the hand," said Peter Hurd, University of Alberta psychology professor and one of the lead researchers. "It opens the door to the notion that aspects of one's personality, in this case the desire to exercise, are fixed very early in life."


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Yan et al. Selective Breeding for a Behavioral Trait Changes Digit Ratio. PLoS ONE, 2008; 3 (9): e3216 DOI: 10.1371/journal.pone.0003216

Cite This Page:

Public Library of Science. "Finger Lengths Linked To Voluntary Exercise." ScienceDaily. ScienceDaily, 19 September 2008. <www.sciencedaily.com/releases/2008/09/080916215126.htm>.
Public Library of Science. (2008, September 19). Finger Lengths Linked To Voluntary Exercise. ScienceDaily. Retrieved January 30, 2015 from www.sciencedaily.com/releases/2008/09/080916215126.htm
Public Library of Science. "Finger Lengths Linked To Voluntary Exercise." ScienceDaily. www.sciencedaily.com/releases/2008/09/080916215126.htm (accessed January 30, 2015).

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