Swinging your arms to counterbalance the movement of your legs, yes.
Yes
yes they do
when you work out
we are using our muscles
Lactic acid
No, frequency is about how often.
Slaves worked hard due to the cruel and inhumane conditions imposed on them by their owners, who demanded labor without regard for their well-being. Additionally, slaves had no choice but to work hard in order to avoid punishment, ensure their survival, and possibly earn privileges.
You can't. Large muscles take dedication and hard work, combined with eating and proper rest. Stick to it though and you can get muscles.
because they work out and they probably run every day
by doing work hard like runing playing sports
Not really, If you ride in moutains It can be, But when you run acctualy, Your muscles work all the time plus it also trains your stamina, So for example if you get chased by gangsters you have to run on your knees. But if you really want to be good. You should run and bike everyday and it will keep you fit and strong.
No easy ones, just hard, time consuming, and boring, hard work.
Work a good honest day's hard physical labour.
Hard work will probably win out over talent in the long run. Coupling talent and hard work will usually result in an unbeatable combination.