In one sentence, describe what the following article is about: Warm-ups will better prepare your voice for scream singing so it's not as vulnerable to damage. Try to do a few different singing warm-ups before every practice session or performance. Start your warm up with a simple lip buzz. Close your lips and then vibrate them so they're rapidly hitting against each other. Hold your pitch for a few seconds and then go up or down a pitch. Keep vibrating your lips and trying different pitches. You can also warm up by singing "mah-may-me-mo-moo." Using one note, sing "mah-may-me-mo-moo" slowly but all in one breath. Once you finish, sing it again, this time going one note higher. Continue until you've gone all the way up the scale. Scream singing can place a lot of strain on your vocal cords, especially if you're trying to project your voice. Use a microphone whenever you're performing (or practicing if you want to sing loudly) so you don't need to project your voice as far. Be careful not to scream sing too loudly into a microphone. You don't want to damage listeners' ears. Whether you're practicing or performing, it's important that you keep your vocal cords hydrated when you're scream singing. If you're performing, bring a bottle of water on stage with you and take a few sips after each song. Even when you're using proper technique, scream singing can wear out your voice. Continuing to sing with aching or damaged vocal cords will only make the problem worse. Listen to your body and take a break so your voice has time to heal.
Summary: Warm up your voice before you scream sing. Scream sing into a microphone to conserve your voice. Drink water during breaks from singing. Let your voice rest if your throat is irritated.

In one sentence, describe what the following article is about: If you notice chest pains, nausea, dizziness, irregular heartbeat, or shortness of breath while exercising, stop immediately. The exercise may be straining your heart. Call your doctor or 911 if the symptoms do not disappear quickly. If you have a prescription for nitroglycerin, then carry it with you during exercise. You should also write down the symptoms you experienced, the time of day, when you last ate, how long they lasted, and how often these symptoms appear. Speak with your doctor about any other symptoms before continuing an exercise program. The doctor may want to perform another stress test before you resume exercising. Wear the correct clothing and shoes for the type of exercise you are doing. Stay hydrated during exercise and be sure that someone knows where you are going when you leave to workout outside. Always use good judgement and stay within your limits. It is much better to continue to work out each day at an intensity you feel is lighter than you can manage, rather than to be sidelined for weeks with an injury or be re-hospitalized with another cardiac event. In very cold or hot weather your body has to work harder to provide oxygen to your cells, including your heart. Do not exercise outdoors if the weather is colder than 35F (1.7C) or hotter than 85F (29.4C) with humidity greater than 80%.
Summary: Look for signs that your heart is working too hard. Prevent injuries and accidents. Avoid exercising outdoors when temperatures are high or low.

In one sentence, describe what the following article is about: Skype for mobile is synchronized with your computer version of Skype, so changes to one will affect the other. Start by deleting your Skype history from your computer. Find your operating system in the sections above and follow the instructions in its section. The precise way to do this will vary based on your device. Usually, the process is similar to this: Open your mobile Settings menu from the list of apps (it generally has a gear icon). Select the "Apps" option, then scroll through the list and select Skype. Some systems may require you to tap and hold down on the Skype icon and select "Settings." Others may have a Settings menu hidden in a swipe-down menu on the main screen. This should remove all of your conversation history from your device. If you are asked to confirm your choice, tap "OK" or the equivalent option. You may need to re-enter your login details the next time you launch Skype. Note that some users report that this also clears your Skype address book for your device. You may need to re-sync with the computer version or re-enter contacts manually.
Summary:
First, delete the history on your computer. Open the Settings menu for Skype on your mobile device. Clear the app's data.