In one sentence, describe what the following article is about: As previously mentioned, you are asked to choose a trainer when first launching the application. If you would like to change your trainer, however, follow the next steps. You will find an icon composed of three horizontal white bars in the upper left corner of the screen. Tap on this icon - it will then open up a side bar to showcase the application's menu. Find the settings option - accompanied by a gear icon - and tap to open. To confirm you are in settings look at the top of your screen and make sure it reads "Settings" in the light blue bar. Tap on the option titled "Select your Trainer." From there you can tap on either Daniel or Angie. You also have the option of having an accompanying voice coach to help you with your work outs. You will have to once more navigate to the settings menu in the side bar of the application. Directly beneath the "Select your Trainer" option is a "Voice Coach" option. You can choose from a limited amount of languages and/or genders. To turn off the voice coach option see the next step. Tap on the toggle button in the upper right hand corner. When switched to off all of the voice coach language/gender options will disappear from the screen, and the toggle button will go grey. To turn back on merely tap the white button and the list will reappear on the screen.
Summary: Change your trainer. Access the main menu. Navigate to settings. Choose your trainer. Choose a voice coach option. Tap on Voice Coach. Customize your voice coach. Disable the voice coach.

In one sentence, describe what the following article is about: To get the best possible fit, put the jacket on and identify where you would like the sleeves to fall. It is a good idea to bend your arms and hold them straight at your sides to see where you are most comfortable with the sleeves ending in these positions. You may want to choose a midpoint measurement between these 2 spots. For example, if you want the sleeves to end right at your wrist, but they are too short at this length when you bend your elbows, then you might need to shorten them so that they end about 0.5cm (0.20in) below your wrists instead.
Summary: Try on the jacket to determine the new sleeve length.

In one sentence, describe what the following article is about: Lie on your back face up, bend your knees, and put your feet flat on the floor so that you do not strain your lower back. Keep your nose perpendicular (pointing straight up) to the ceiling. Nod your head slowly forward without moving your neck. Envision that you are drawing a small arc with the tip of your nose. Keep the movement very slow. Slowly return your nose to its vertical position. Repeat 10 times. In a few days, increase your repetitions to 20 times. The next week, begin doing 2 to 3 sets of nose nods per day. Once you get used to the motion, you can do them standing up against a wall or standing up away from the wall. Sit up straight in a chair. Your neck should be long and your knees bent at a 90 angle with your feet on the floor. Squeeze your shoulder blades together, as though you are trying to get them to touch. Hold this for 3 seconds, like you're trying to hold a tennis ball between your shoulder blades. Slowly release your hold back to a relaxed position. Intentionally drop your shoulders if tension has caused them to creep closer to your ears. Let your arms hang to your sides. Repeat this exercise 10 times, moving in a controlled manner. Increase to holding for 10 seconds and then to doing 2 to 3 sets per day as you get stronger. Chest tightness and weak back muscles are very common in people who spend a lot of time at a desk or in front of a computer. It tends to cause your shoulder to slump forward. This exercise helps to undo that poor posture. Sit in a chair or stand up straight. Practice your chin retractions/nose nods a few times. Do a chin retraction, letting your nose sweep downward slightly. Once it is retracted, keep your chin at the same distance to your neck, but move the top of your head backward. Stay there for a few seconds and move slowly, returning your head to an upright position. Then, move out of the chin retraction. Do this 10 times, working up to increased repetitions and sets. During this exercise, remember that you are not trying to increase the arc of your neck. You are trying to pivot your head backward in a natural and correct manner. People who have had forward head posture for an extended period of time may find this very difficult to do in the beginning.
Summary:
Do chin retractions, otherwise known as nose nods. Practice shoulder blade squeezes. Improve your range of motion with advanced chin retractions.