Reg­u­lar ex­er­cise can help the re­solve to quit smok­ing

The Weekend Australian - Travel - - Health -

SMOK­ERS who ex­er­cise reg­u­larly may be more likely to kick the habit than those who don’t, ac­cord­ing to a new study in the Amer­i­canJour­nalofPublicHealth. Re­searchers col­lected in­for­ma­tion from more than 23,000 Cana­dian smok­ers, about 25 per cent of whom were phys­i­cally ac­tive. Com­pared to in­ac­tive smok­ers, phys­i­cally ac­tive men were 36 per cent more likely to have tried to quit smok­ing within the past year. For women, phys­i­cal ac­tiv­ity in­creased the chances of at­tempt­ing to quit by 37 per cent. AmJPublicHealth 2008;doi:10.2105/ AJPH.2007.120469 (deRuiter WK, et al) THE au­thors of a new study in the Jour­nalof theAmer­i­canDi­etet­icAs­so­ci­a­tion have found that chil­dren who drink flavoured or plain milk get more nu­tri­ents and have a lower or sim­i­lar body mass in­dex (BMI, a mea­sure of fat­ness) than those who drink no milk at all. The au­thors claim that lim­it­ing ac­cess to flavoured milks in schools could de­prive chil­dren of the many nu­tri­ents avail­able in milk. Di­etary in­for­ma­tion was col­lected from 7557 Amer­i­can chil­dren and young adults aged two to 18 years. Milk drinkers (flavoured and plain) had sig­nif­i­cantly higher in­takes of vi­ta­min A, cal­cium, phos­pho­rus, mag­ne­sium and po­tas­sium than non-milk drinkers. They also had com­pa­ra­ble or lower BMI mea­sures than non-milk drinkers. JAmDi­etAs­soc 2008;108:631-639 (Mur­phy MM, et al) BA­BIES are twice as likely to be born bot­tom first (breech birth) if one or both of their par­ents were them­selves breech de­liv­er­ies, con­cludes a study pub­lished on­line in the Bri­tish Med­i­cal Jour­nal this week. The find­ings sug­gest that breech birth is in­her­ited, and dis­cov­er­ing the genes re­spon­si­ble could lead to new meth­ods of pre­ven­tion. Around three to four per cent of ba­bies born at term are in the breech po­si­tion, and th­ese ba­bies are at greater risk of death or health prob­lems af­ter birth. Re­searchers ex­am­ined the med­i­cal records of all births in Nor­way be­tween 1967 and 2004. They iden­ti­fied a to­tal of 387,555 par­ent and child pairs where the child was a first-born. Men and women who had been de­liv­ered full-term in breech po­si­tion had more than twice the risk of breech de­liv­ery in their own first preg­nan­cies. BMJ 2008;doi:10.1136/ bmj.39505.436539.BE (Nordtveit TI, et al) DI­A­BETES suf­fer­ers could im­prove their symp­toms by tak­ing up tai chi — the tra­di­tional Chi­nese mar­tial art in­volv­ing gen­tle move­ment, deep breath­ing and re­lax­ation. In the Bri­tishJour­nalofS­port­sMedicine this week, re­searchers re­port that a 12-week tai chi ex­er­cise pro­gram can boost the im­mune sys­tem of pa­tients with type 2 di­a­betes, which could also im­prove symp­toms of the dis­ease. The study in­volved 30 di­a­betic pa­tients and 30 non-di­a­betic adults of a sim­i­lar age. They par­tic­i­pated in three one-hour tai chi ses­sions per week for 12 weeks. Blood sam­ples were taken be­fore and af­ter the 12-week pro­gram. Be­fore ex­er­cis­ing, di­a­betic pa­tients had higher lev­els of a pro­tein called gly­cated haemoglobin, which forms when blood sugar lev­els are high, com­pared to the non-di­a­bet­ics. Af­ter the tai chi pro­gram, lev­els of gly­cated haemoglobin fell sig­nif­i­cantly in the di­a­betic pa­tients. Tai chi also in­creased the lev­els of a pro­tein called in­ter­leukin-12 in di­a­betic pa­tients, which could boost the im­mune sys­tem. BrJS­port­sMed 2008;doi:10.1136/ bjsm.2007.043562 (Yeh S-H, et al) GET­TING too much sleep may be just as bad as not get­ting enough when it comes to keep­ing the ki­los off, ac­cord­ing to a study in the jour­nal Sleep this week. Body mea­sure­ments and sleep du­ra­tion in­for­ma­tion were col­lected from 276 adults aged be­tween 21 and 64. Over six years, short du­ra­tion sleep­ers (five to six hours per night) gained 1.98kg more and long du­ra­tion sleep­ers (nine to 10 hours per night) gained 1.58kg more than av­er­age du­ra­tion sleep­ers (seven to eight hours). The risk of de­vel­op­ing obe­sity was 27 per cent higher for short-du­ra­tion sleep­ers and 21 per cent higher for long-du­ra­tion sleep­ers, com­pared to those who got the av­er­age (and rec­om­mended) du­ra­tion of seven to eight hours of sleep per night. Sleep 2008;31:517-523 (Cha­put J-P, et al) Want to know more? Items are ref­er­enced where pos­si­ble. A ref­er­ence such as ‘‘ 2007;35:18-25’’ means the source ar­ti­cle was pub­lished on pages 18-25 in vol­ume num­ber 35 of the pub­li­ca­tion, in 2007. A doi num­ber or web­site ad­dress is used for re­search pub­lished on a jour­nal’s web­site. ‘‘ ‘‘


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