How is tvp total shit? I don't think anyone on this forum has done it, so no one should give an opinion on it on how successful someone will be using it.

Feel free to do weights at whatever age, but results won't be as good as someone who has been through puberty, as you won't have as much testosterone. It might also be a little painful on your joints, but it's nothing big.

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If you have any questions about training, I'd prefer it if you asked them at http://eliteathletes.org/forum