Well it depends on the person but usually not until they are 12. It still depends on the person, most boys start when they are11 though.
around 12 years old
When he was 14
no. my son is 11 and has been lifting for a month.
because you are.
The quickest way to build muscle is to start lifting weights. Start off with lighter weights until you can lift them easier and start increasing the weights.
Start lifting with what you are comfortable with and then gradually start adding weight. Ex. start lifting 5lb, next week (or every other week) make it a 10lb weight
Start lifting weights.
i started when i was 8 and im a girl. but i dont think really until 12. 10 for boys
Well, it matters when you wake up if you wake up at 10:00 then lift weights at 1:30. Usually you should wait at least two or more hours
No way!
try lifting some weights to start buddy!
There is no specific age or height, i started when i was 13 and i was 5'11" and i could bench 115 on my first day.