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Dr Stacy Sims reveals how much weight you should lift - and why it's important to go heavy

The exercise physiologist often says: 'If it doesn't challenge you, it doesn't change you' ...
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4 life-changing lessons from the world's best studies on exercise for women, by a female physiologist

For centuries, medical researchers have exclusively studied men. Despite the fact that women are physiologically very different, sex differences have been ignored, and findings have been carelessly ...