Controversial trials in which volunteers are intentionally infected with Covid-19 could accelerate vaccine development, according to the World Health Organization, which has released new guidance on how the approach could be ethically justified despite the potential dangers for participants. So-called challenge trials are a mainstream approach in vaccine development and have been used in malaria,…
5 min read THE BARBELL DEADLIFT IS undisputedly one of the most consequential exercises in the strength training world. The heavy compound lift can be one of the best moves in your arsenal for building muscle and strength, and you need just about every muscle group to work together if you're going to be successful
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