whats the difference between muscle toneing and muscle mass?

can i lift weights i m 13 in 1 day and 5"11 tall and 130 pounds i play basketball and my coach said it is not good idea but hes 5"9 i have well toned muscles but im so skinny and what shuld i eat for more mass Powered by Yahoo! Answers

I am looking for fastest steroid-free way to increase muscle mass. Any help will be greatly appreciated. Thanks in advance! Powered by Yahoo! Answers

if you are a vegetarian you obviously don’t eat meat rite? So they need protein and they take protein supplements. Are the protein supplements better than the protein you get from eating meat? Which is better for you? do you get more from eating meat or the same? Powered by Yahoo! Answers

Hello, I was wondering how I would begin to build muscle mass in my forearms. I’m a skinny guy and I would like to get more muscular. Also how would I build my pecs and what is the best way to define my abs? (Preferably things that don’t require a gym membership, cash is kinda…

I notice a lot of people that take herbal supplements always seem refreshed and look really healthy! What are some good supplements to take to make your skin look good, hair strong, and feeling energized. (not b12! haha) Powered by Yahoo! Answers

When you’re trying to lose weight, and you gain weight during that process how do you know that what you’ve gained is muscle mass and not fat? Like when youve only been on the diet for lets say two months I don’t think you would build enough muscle to actually visualize you’ve gained muscle mass…