Why do I have such big muscles?
961193
because you eat poopy!
1115586
the men on men's health magazines are just like the women on fashion magazines. increadibly hard to get to.\n\nthe ideea is that each body is different. they were "lucky" that their bodies had a natural form and muscle placement to look like that. but that counts for little of why they look like that.\n\nthe ideea behing growing big/er muscules is that you have to do anareobic exerices. pumping iron and the stuff ... these make muscles bigger and include : lifiting heavy objects, running for short amount of times really fast, then resting etc.\n\nAlso, for some muscles to appear you just have to lose some fat. abdominal muscles (6 or 8 packs) are these kind of muscles.
274204
creatine just causes your body to put water into the muscle....which makes muscles look bigger, but doesn't truely do anything for strength.
1016343
Because you are double jointed in your shoulders. I had a boyfriend that could do that.
547112
It can build muscle, which will make you look bigger.
711304
If you're muscles don't hurt then you know you're not getting any stronger. Lift heavier weights with more reps and sets. If you want bigger muscles, lift heavier weights that you can barely lift. Once your muscle starts hurting, you know you're growing. No pain no gain.
1186877
You need to lift heavier loads which means you'll not get much reps out of it, but it will help you bulk up.\n\nLighter load w/ high reps makes the cuts and definition for muscles.
924700
depends. Are you athletic? And since your still growing your body might be taking in extra pounds for growth.
646742
Muscle is heavier than fat.
675224
It takes heavy weight to develop bulk. light weights with more repetitions will tone and slenderize
719050
because they have strong muscles in their legs and they are top heavy        ?
320531
if you can't move them, it's probably because you don't have any muscles.  You need to work out.
736130
Muscular legs are the bomb. Keep them.
476092
Most likely you've increased your muscle mass.  Muscle weighs more than fat.  Do your clothes fit better?  If you aren't eating enough your body could be holding onto every calorie you put into it because it's in survival mode.
754516
Yes, your body adapts to what you do.  Do nothing and the muscles become small and weak.  Lift heavy weights and they become big and strong.  The main reason old people are very fragile is more to do with their inactivity than age itself!\n\nThere is also a genetic element in this, some people will have lots of muscles fibres, and regardless they look 'toned', others will workout every day and never look 'buff'!
1086563
You just have a very high metabolism. Or you may be on a certain vitamin or drug that gives you more energy than your body can contain.
746324
Mostly it is because there are microscopic tears in your muscle...\nAnd as they repair, that's how you build up the muscle.