Not even if the person can pummel you mercilessly?
Because generally that factor tends to increase someone's threshold for disrespect.
Just saying...you'd tolerate at least a little bit more from Fedor than you would from John the 120-pound sandwich maker.
lol... I get your point, but no. You lose any ounce of respect you may of had from that person when you back down. I tend to stand my ground reguardless of outcome or predicted outcome.
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Even when winning seems illogical, losing is still far from optional.
Losing/Gaining weight is more effected by diet than cardio. Eat properly and do weights properly and cardio can easily be incorporated while bulking. Eat better and do weights + cardio works well cutting.