The main factor influencing a growth spurt is a release of hormones from the pituitary gland leading to a huge appetite as your body prepares its resources for a huge amount of cell growth. :)
At Age
growth spert
yes
usually around 13 or 14
you get boobies once youve hit your growth spert
im a miget too and u gotta wait till you get a growth spert
Thomas Spert died in 1541.
every boy gets taller at different pases and some may not grow for a long time then have a big growth spert
regulates excretion of GH(Growth Hormone)
yes
Investment in Gold reduces supply of money needed for accelation in economic growth. To that extent that affects growth of GDP.
there is no fixed age it varies between each girl