All in the rhythm – US doctors claim asthma management breakthrough – dpa international

Asthma inhaler (Simon Roughneen)

DUBLIN — An asthmatic can ditch the cigarettes, steer clear of pollen and dust, take regular pulls on a trusty inhaler, and top all that off with running, cycling, swimming – but in the end, all those good habits might not matter as much as previously assumed. At least not at night, because once the sun sets, according to US doctors and scientists, the body’s natural circadian rhythms “have a stand-alone impact on asthma severity, independent of behavioral and environmental factors.”