15don MSN
What’s the difference between ‘lean’ and ‘bulk’ muscle — and which should you aim for?
There's a lot of talk about lean muscle compared to bulk muscle, but experts say it's not worth differentiating the two. Learn why.
A research team affiliated with UNIST has unveiled a new type of artificial muscle that can seamlessly transition from soft and flexible to rigid and strong—much like rubber transforming into steel.
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