Is the Decreased Longevity among Left-Handers Related to an Increase in Heart Disease?

  title={Is the Decreased Longevity among Left-Handers Related to an Increase in Heart Disease?},
  author={John Russell Hughes and Elizabeth Dorner and Michele Wind},
  journal={Clinical EEG and Neuroscience},
  pages={182 - 184}
Many studies report that left-handers have a shorter longevity than right-handers, and the present study may provide a possible explanation for that finding. In a Cardiac Rehabilitation Unit for the elderly with a mean age of 75.2 years the prevalence of left-handers was 16.7%. This latter value was significantly different (p = 0.0028) from the 6.7% in controls of similar age. These data suggest that heart disease may be one reason for a reduced longevity among lefthanders. Left-handers use the… 
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Differences in heart rate variability (HRV), an index of autonomic cardiac activity, were examined for right- and left-handed individuals to suggest the atypical cerebral organization of left-handers may be related to an imbalanced autonomic system that results in higher frequencies of heart irregularities.
Handedness of healthy elderly and patients with Alzheimer’s disease
Results did not support a trend of decreasing non-right handedness with increasing age in controls, but did provide support for such a trend in individuals with AD.
Metabolic, Immune, Epigenetic, Endocrine and Phenotypic Abnormalities Found in Individuals with Autism Spectrum Disorders, Down Syndrome and Alzheimer Disease May Be Caused by Congenital and/or Acquired Chronic Cerebral Toxoplasmosis.
Abstract Toxoplasma gondii is a protozoan parasite that infects about a third of human population. It is generally believed that in immunocompetent hosts, the parasite infection takes usually
Fitness advantages of the biased use of paired laterally symmetrical penises in an insect
Female genital morphology may play a significant role in the evolution of handedness and may have acted as a driving force to reduce penis number in related taxa.
Desenvolvimento da assimetria manual
RESUMO A reduzida tendência para a sinistralidade têm sido documentadas em diversas culturas, em diferentes grupos com patologias identificadas, e em diferentes faixas etárias. Pela importância da


Left-handedness: a marker for decreased survival fitness.
Evidence suggests that left-handedness may be a marker for birth stress related neuropathy, developmental delays and irregularities, and deficiencies in the immune system due to the intrauterine hormonal environment.
The diminished number of older left-handers: differential mortality or social-historical trend?
  • S. Coren
  • Psychology, Medicine
    The International journal of neuroscience
  • 1994
Although both samples showed decreased sinistrality with age, there was no increase in the proportion of left-handers over the 12 year period, suggesting that the rarity of older left- handers is due to reduced longevity.
Effects of non-right-handedness on risk for sudden death associated with coronary artery disease.
The hypothesis that non-right-handedness is associated with sudden cardiac death was tested based on evidence that sympathetic imbalance may contribute to ventricular arrhythmogenesis and evidence
Left-handedness and old age: Do left-handers die earlier?
The results showed a decreasing prevalence of left-handedness across the age span, with 15.22% in the youngest group (21-30 years), but only 1.67% in subjects older than 80 years, which supports the modification hypothesis and questions the elimination hypothesis.
Evidence for longevity differences between left handed and right handed men: an archival study of cricketers.
There was clear evidence that left handedness was associated with a decrease in longevity among a cohort of adult, athletic men and a major factor responsible seemed to be a differential likelihood of accidental death or death during warfare.
Right or wrong? On the difficult relationship between epidemiologists and handedness.
  • O. Basso
  • Psychology, Medicine
  • 2007
The declining prevalence of left-handers with age has resulted in the hypothesis that sinistrality, being the result of a developmental insult, may be associated with a reduced life span, and the literature on handedness itself appears to suffer from a number of problems.
The relationship between hand preference consistency, health, and accidents in a sample of adults over the age of 65 years
Of those participants who reported a recent fall, mixed-handers were more likely to report a higher number of injuries from these falls when compared to the reports of consistent- handers, and all other comparisons showed no differences between the two hand preference types.
Heart rate and blood pressure responses of left-handers and right-handers to autonomic stressors.
The findings suggest that the autonomic control over the cardio-vascular system may be different in LH and RH, and that this imbalance could be attributable to a variation in cerebral dominance.
Left hand preference is related to posttraumatic stress disorder.
The association with left handedness may be a robust finding in people with PTSD, and left handers were found to have significantly higher scores in arousal symptoms of PTSD.
Does the right hemisphere age more rapidly than the left?
The results were discussed in terms of possible differences in functional organization of the two hemispheres, the general conclusion being that the right hemisphere ages in a different manner than does the left.