When China unveiled its roster of 31 swimmers set to represent the country at the upcoming Paris Summer Games, 11 of the competitors remain embroiled in a doping scandal from the previous Olympics that continues to send shockwaves across the sporting world and beyond. According to an April New York Times report, 23 Chinese swimmers had, months before the Tokyo Olympics in 2021, tested positive for trimetazidine (TMZ), a prescription heart drug that can enhance performance and has been banned by the World Anti-Doping Agency (WADA) since 2014.

TIME September 6, 1937 12:00 AM GMT-4 By changing the design of its propellers (deepening the pitch and adding a fourth blade), the S. S. Normandie last month recaptured the Atlantic speed record (TIME, Aug. 16). Even more striking are the results that have been attained in the last four years by changing the design of airplane propellers. Until 1933 there had been only two major improvements in the paper airscrew invented by Leonardo da Vinci some 450 years before to pull toy helicopters to the ceiling of his study.

Tonight, President Joe Biden and former president Donald Trump face one another in an unprecedented televised debate. The format has been around since the 1960 presidential election, but the timing, structure, and candidates themselves—notably one being a convicted felon—represent uncharted waters for TV debates. Typically, the media zeroes in on protocols, performance, polling, and gaffes—with journalists often prioritizing horse-race style coverage over voter education. How might the debate nudge the scale for the candidates, as determined by the inevitable follow-up polling?

The time you do your daily exercise is as important as the exercise itself, especially when it comes to controlling your blood sugar levels. This is according to a new study that says that the time you do your daily exercise is equally as important as the exercise itself, especially when it comes to controlling your blood sugar levels. What's the best time to exercise to reduce blood sugar?

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