weight lifting?

Can you answer Joey Callejas’s question about Bodybuilding?:

I am 13 (i’ll be14 in june) and i am 5′7, i play fottball so i need to bulk up so my friend suggested me to free weight soi am planning to buy a pair of 5kg dumbbells, can lifting weights stunt growth?

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What pund dumbells am I supposed to buy?

Can you answer Panathinaikos’s question about Bodybuilding?:

Im 12, 130 (around there) pounds and 5 foot 6 I want to get bigger arms how can I do that with the dumbells like how many pounds? And how many reps and things? What else helps to gain arms at my age? AND WILL THIS STUNT GROWTH?!

Thanks!

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