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 are performed in a prone position, which can help develop a good posture. Military personnel and athletes do push-ups as part of exercise regimen that helps strengthen the upper back and shoulder while providing stability to the torso, and promote muscle endurance and overall fitness.he following steps explain how to do a push-up: 1  Lower your body down on to the floor or a carpeted floor with your palms under your shoulders-slightly wider than shoulder width. 2  Keep your feet close together and dig your toes into the floor helping to stabilize the lower part of your body.