QUOTE(stickmanchong17 @ May 30 2014, 07:41 PM)
I dun agree. Those who put in 100% to grow big doesnt mean dat he/she will change frm a skinny person to a big, muscular person. He/she will develop more muscles, just that. Read dis-http://www.bodybuilding.com/fun/becker3.htm Being stupid has many types, depending on wat r u referring to~ Some people arent born smart. Do u think everyone is born wif an IQ like Leonardo Da Vincci or Albert Einstein? Do u think a person can control his or her IQ at ease? If u still insist on yr ignorant "If your whole family is stupid, do you stay stupid for the rest of your life or you wait till you are middle-aged then you become intelligent. " argument, then well, u r discriminating against those wif mental disabilities~

The link you gave are talking about body type. Yes, that can't be changed because it's genetic. It shows that the amount of muscle you can gain and the pros and cons for each body type. Not the inability to grow.
But the inability of eating more and putting blame on genetic because you father mother grandfather and all you ancestor are thin skinny and twig is just plain wrong. Everyone can grow big from being thin, they just need to learn what to eat, how much to eat and what to do. That's all.
Your previous comment on
"Genetics oso play an important role. If yr family r tall and lanky, then obviously it'll be very hard 4 u to be bigger in size. Heard frm my relative dat one may grow fat when he/she bcomes a middle-aged person. So, dun fret, yet... "
shows that it's ok to be the same as your family because hell, it's genetic. No need to put effort on changing your body because hell, it's genetic. Let's put a blame on genetic and you'll be content with you non-visible effort you've made to progress.