Search

Global technology firms dominate our lives, but 2020 saw governments try to claw back power, says Donna Lu

Purpose:To examine the effects of 24-h travel west across 11 time zones on subjective jet-lag and wellness responses together with self-reported sleep and upper respiratory symptoms in 18 professional rugby league players.Methods:Measures were obtained 1 or 2 d before (pretravel) and 2, 6, and 8 d after travel (post-2, post-6, and post-8) from Australia to the United Kingdom (UK) for the 2015 World Club Series.Results:Compared with pretravel, subjective jet-lag remained significantly elevated on post-8 (3.1 ± 2.3, P < .05, d > 0.90), although it was greatest on post-2 (4.1 ± 1.4). Self-reported sleep-onset times were significantly earlier on post-2 than at all other time points (P < .05, d > 0.90), and large effect sizes suggested that wake times were earlier on post-2 than on post-6 and post-8 (d > 0.90). Although significantly more upper respiratory symptoms were reported on post-6 than at pretravel (P < .05, d ˃ 0.90), no incidence of injury and negligible changes in wellness and muscle strength and range of motion (P > .05, d < 0.90) were evident after travel.Conclusions:Results suggest that westward long-haul travel between Australia and the UK exacerbates subjective jet-lag and sleep responses, along with upper respiratory symptoms, in professional rugby league players. Of note, the increase in self-reported upper respiratory symptoms is a reminder that the demands of long-haul travel may be an additional concern in jet-lag for traveling athletes. However, due to the lack of sport-specific performance measures, it is still unclear whether international travel interferes with training to the extent that subsequent competition performance is impaired.

Former big tech employees are rounding on the companies they helped create and that now have us in their grip, finds Donna Lu

Facebook has long promised to get to grips with misinformation on its platform, but its attempts so far have been poor, says Donna Lu

Residents in the Australian city are celebrating after their strict lockdown quashed the coronavirus, reports Donna Lu

Almost 3000 new cases reported in a day as the number of infections in people younger than 40 rises sharply, reports Donna Lu

Internet giants are fighting a proposed law that could see them pay for news articles shared on their platforms, says Donna Lu

The coronavirus pandemic has infected the internet with misinformation.

Jane Goodall has tirelessly fought for a better world for humans and wildlife, and with covid-19 she says there are reasons to stay positive, finds Donna Lu

Electric scooters are a nightmare: they clog up pavements and are an ungainly eyesore. But we still need them, says Donna Lu

Hubei residents are trying to stay positive as hospitals attempt to treat thousands infected by the new coronavirus, reports Donna Lu