The Normal Hearing of Bantu and Bushmen A Pilot Study

Dickson, R. C.

doi:10.1017/s0022215100069061

Cited by 8 publications

(4 citation statements)

References 3 publications

(1 reference statement)

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“…Reports by Kodicek and Garrard (1954), Dickson (1968), General Hospital, Weston-super-Mare, Somerset DENNIS CLARK, FR.LC.S., Consultant E.N.T. Surgeon Bicknell and Davies (1968), and others confirmed the impressions gained from our own experience that the procedure for issuing aids leaves much to be desired.…”

supporting

confidence: 54%

Voluntary visitors to the elderly deaf.

Clark¹

1972

BMJ

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supporting

confidence: 54%

Voluntary visitors to the elderly deaf.

Clark¹

1972

BMJ

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“…More work is necessary to determine which aspects of sleep decline with increasing age independently of co‐morbidities, as well as whether sleep disturbances can exacerbate existing health problems in older adults. In addition, age‐related changes in health measures, including hearing loss and blood pressure, are not necessarily universal (Dickson,1968; Stevenson,1999), and therefore sleep may not demonstrate the same associations with age outside the Western world.…”

Section: Impact Of Biology Culture and Environment On Sleepmentioning

confidence: 99%

Does inadequate sleep play a role in vulnerability to obesity?

Knutson

2012

American J Hum Biol

206

145

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The prevalence of obesity is increasing rapidly worldwide, which is cause for concern because obesity increases the risk of cardiovascular disease and diabetes, reduces life expectancy and impairs quality of life. A better understanding of the risk factors for obesity is therefore a critical global health concern and human biologists can play an important role in identifying these risk factors in various populations. The objective of this review is to present the evidence that inadequate sleep may be a novel risk factor associated with increased vulnerability to obesity and associated cardiometabolic disease. Experimental studies have found that short-term sleep restriction is associated with impaired glucose metabolism, dysregulation of appetite and increased blood pressure. Observational studies have observed cross-sectional associations between short sleep duration (generally <6 hours per night) and increased body mass index or obesity, prevalent diabetes and prevalent hypertension. Some studies also reported an association between self-reported long sleep duration (generally >8 hours per night) and cardiometabolic disease. A few prospective studies have found a significant increased risk of weight gain, incident diabetes and incident hypertension associated with inadequate sleep. Given the potential link between inadequate sleep and obesity, a critical next step is to identify the social, cultural and environmental determinants of sleep, which would help to identify vulnerable populations. Future human biology research should consider variation in sleep characteristics among different populations and determine whether the associations between sleep and obesity observed in Western populations persist elsewhere.

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“…While a primary role is played by community noise (social life, traffic, leisure activities, etc. ), other factors, such as race, geographical location, climate, lifestyle and diet may also play an important part in noiseinduced chronic hearing loss (Rosen et al, 1962;Dickson, 1968). Germanò et al (1981), in the population of a geographical area with low levels of community noise (Alicudi, known as 'the island of silence'), observes better hearing thresholds than those expected for populations of equal age living in urban areas.…”

Section: Introductionmentioning

confidence: 99%

Influence of Environmental Factors on the Evolution of Industrial Noise-Induced Hearing Loss

Abbate

Concetto

Munaò

et al. 2005

Environ Monit Assess

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The aim of the study is to investigate how environmental factors, associated with exposure to industrial noise, affect the development of chronic noise-induced hearing loss. The study was conducted on 186 male subjects working in two bottling plants, situated respectively in a small farming community, and in a medium-sized city with significant levels of noise pollution. Levels of occupational exposure were the same for the two groups. The subjects were selected by means of a preliminary medical examination, and exposed to tonal hearing tests and acoustic impedance tests. Statistical analysis was performed on hearing threshold values obtained at the frequencies of 500, 1000, 2000 and 4000 Hz. The comparison between the thresholds obtained in the two groups showed a statistically significant difference, especially at the frequency of 4000 Hz and for occupational exposure exceeding 17 yr. The results led us to conclude that environmental factors, and urban noise in particular, influence the onset and development of occupational acoustic trauma, and that those working in the country are significantly less affected than those in the city. Since occupational exposure was the same for both groups, their different responses must therefore be interpreted as due to differences in non-occupational exposure, in turn dependent on different opportunities for rest from noise and different levels of exposure to noise pollution.

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The Normal Hearing of Bantu and Bushmen A Pilot Study

Cited by 8 publications

References 3 publications

Voluntary visitors to the elderly deaf.

Voluntary visitors to the elderly deaf.

Does inadequate sleep play a role in vulnerability to obesity?

Influence of Environmental Factors on the Evolution of Industrial Noise-Induced Hearing Loss

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