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Objective To describe and characterise serum androgen levels and to study their possible influence on athletic performance in male and female elite athletes. Methods 2127 observations of competition ...

I’m a personal trainer who's tested products for five years. Of the 14 fitness trackers I tested, the Fitbit Charge 6 and the Amazfit Bip 3 Pro emerged as the best for beginners and the best value, ...

An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...

From running errands to off-roading, pickup trucks are among the most versatile vehicles on the road. Small to large, there is a truck that can handle your workload and daily driving needs.