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- BookSummary: This book addresses whether or not calcium and magnesium ('hardness') in drinking water can contribute to preventing disease. It includes a comprehensive consensus view on what is known and what is not about the role and possible health benefit of calcium and magnesium in drinking-water. Also included is a series of chapters each authored by internationally renowned experts reviewing the state of the art in different aspects, including: global dietary calcium and magnesium intakes; the contribution of drinking water to calcium and magnesium intake; health significance of calcium and magnesium; role of drinking-water in relation to bone metabolism; epidemiological studies and the association of cardiovascular disease risks with water hardness and magnesium in particular; water production, technical issues and economics.--Publisher's description.
Contents:
Expert consensus
Overview of global dietary calcium and magnesium intakes and allowances / S.A. Atkinson, R Costello and J.M. Donohue
The mineral composition of water and its contribution to calcium and magnesium intake / C.N. Ong, A.C. Grandjean and R.P. Heaney
Identifying magnesium deficiency : a diagnostic dilemma / R.J. Elin
Magnesium deficiency : clinical and experimental aspects / W.B. Weglicki
Magnesium and hypertension / R.M. Touyz and B. Sontia
Atherosclerosis and magnesium / B.M. Altura and B.T. Altura
Health significance of calcium and magnesium : examples from human studies / G.F. Combs, Jr and F.H. Nielson
Calcium and magnesium : role of drinking-water in relation to bone metabolism / C.M. Weaver and J.W. Nieves
Epidemiological studies and the association of cardiovascular disease risks with water hardness / R. Calderon and P. Hunter
Alternative hypotheses and knowledge gaps / J.K. Fawell
Water production, technical issues and economics / P. Regunathan.Digital Access WHO 2009 - ArticleJensen LB, Tallgren A, Troest T, Jensen SB.Scand J Dent Res. 1977 Sep;85(6):456-70.The purpose of the investigation was to study the effect of acupuncture on myogenic headache and to examine whether electromyographic recordings of jaw muscle activity would provide objective evidence of the effect of such treatment. In 21 dental students, 14 males and seven females, with a history of 2--10 years of headache, acupuncture was performed unilaterally in the foot between the 4th and 5th metatarsal bones (G 41). The needle was inserted to a depth of 10--15 mm and moved continuously by hand for 15--20 min. Electromyographic recordings of postural activity in the right and left anterior temporal and masseter muscles were obtained in the same sitting before, during and after acupuncture treatment. In clinical controls 24 h, 1 month and 4 months after the treatment, 12 subjects reported considerable improvement, two variable results, and seven no change. The electromyographic recordings showed an average decrease in postural activity during acupuncture, particularly of the temporalis muscles, and a further decrease after completed treatment. However, marked individual variations in muscular response were noted. The results indicate that acupuncture treatment can relieve headache, and that electromyographic recordings may provide objective evidence of the effect of acupuncture.