Marijuana grow questions

A question from a fellow grower:

When cracks branch or head stamen inside in, vegg when it is about 3 weeks, you should leave it in almost the same direction as when it straight huh? and you can also make your arms on the sides? ! and the other täknigen when you just bend it to about 90 degrees, then you should not crack it, so it goes back haa? one can start with the head in after about 3 weeks vegg