Signs that your period is on its way are if you've grown underarm and pubic hair. Typically, you'll start your periods about two years after your breasts start growing and about a year after getting a white vaginal discharge. The average girl will get her first period around 12 years old, but it varies from person to person.
Here is a graphic of the muscles used in push ups. Compare it with the following about bench press. Both will give you a bigger chest and some more arm and shoulder size. Push ups work the stomach more. I've been working out in the gym for more than 40 years. My advice to anyone who will listen is to do a lot of push ups. Yes, I know the bench will get you stronger than push ups, but it is push ups that will allow you to bench when you get my age.
Push ups primarily work the upper body muscles, with some core muscles being worked by providing secondary support.The main muscles worked in the traditional push up are the shoulder (deltoids), chest (pectorals) and triceps.There are many variations that you can use to spice up a push up routine and target specific muscle groups. Hand placement variations in push ups are one way to add variety.Placing your hands wider than your shoulders will work chest muscles more. The diamond hand position works the triceps. You do the diamond by placing the thumb and forefingers of both hands together in a diamond shape with your hands flat on the ground.and placement variations in push ups are one way to add variety. Placing your hands wider than your shoulders will work chest muscles more. The diamond hand position works the triceps. You do the diamond by placing the thumb and forefingers of both hands together in a diamond shape with your hands flat on the ground.