TWRoO said:
You're 13, I wouldn't worry. Sometime between 16 and 21 (after you stop growing upwards, but not necessarily immediately after) you will start to bulk up. |
Very true. You will grow naturally larger muscles after adolescence, the more natural the nicer.
I always thought I was scrawny, I was actually the whelp of my family, but I am growing now (at age TWENTY SEVEN!). There are other things fundamental to muscle growth such as reduced stress (cortisol is bad for muscle reproduction) and increased sleep (rest is fundamental to muscle growth, as most muscle growth occurs during rest). That's the little I know about it.
