In one sentence, describe what the following article is about: Treadmills are available at most gyms, and they're a convenient way to get some cardio exercise in and burn calories. Many treadmills let you adjust the speed and incline that you want to work out with, so it's a good choice regardless of your fitness level. You can burn around 125 calories per 1 mile (1.6km) walking briskly on a treadmill if you weigh 150 pounds (68kg). Using a treadmill can be hard on the knees, so you may want to use a different cardio machine if you suffer from knee pain or have a knee injury. Working out on an elliptical is also a good calorie-burning cardio exercise, and like a treadmill, you can usually adjust your intensity level. Ellipticals are popular exercise machines, so you shouldn't have a hard time finding one at your gym. You can burn 170-320 calories in 30 minutes on an elliptical, depending on your weight and the level of intensity you're working out at. For example, if you weigh 200 pounds (91kg), you could burn 286 calories by working out on an elliptical at a high intensity for 30 minutes. Pedaling on a stationary bike at moderate intensity for 30 minutes can help you burn 200-700 calories, depending on your weight. It's also a great choice if you have knee problems since most of your body weight is being supported by the machine. For example, if you weigh 150 pounds (68kg), you could burn 250 calories by exercising on a stationary bike with moderate intensity for 30 minutes. If you're new to exercising, you can start out pedaling on a light intensity setting and then gradually increase your intensity level as you improve. Rowing is a great, full-body cardio exercise that won't place a lot of stress on your joints. On a rowing machine, you can burn calories while working out your arms, legs, and core. Start out on a low-intensity setting and progress slowly so you don't hurt your back. Depending on your weight, you can burn around 400-700 calories by spending 1 hour on a rowing machine. For example, if you weigh 240 pounds (110kg), you could burn 650 calories by working out on a rowing machine with moderate intensity for 1 hour.
Summary: Walk or run on a treadmill. Try using an elliptical machine. Exercise on a stationary bike. Work out on a rowing machine.

In one sentence, describe what the following article is about: If you are new to Risk, then gaining a thorough understanding of the rules may help you to play a better game. Understanding the rules may also help you to catch your opponents is they try to cheat or bend the rules in their favor. Read the rulebook carefully to make sure that you have a good understanding of how to play Risk. The more you play, the more you will be able to work on your game strategy, so play as often as you can. It is also a good idea to try to play with more experienced players who are willing to share their knowledge with you. The Risk rulebook offers three strategies for players that may help you when you are just getting familiar with the game. Try to use these strategies every time that you play the game and your game will improve. The three pieces of strategic advice given to players by the Risk rulebook include: Hold entire continents to earn bonus reinforcements. The more army reinforcements that you have, the more powerful you are. Therefore, you should try to get as main reinforcements as possible. Watch your borders for enemy armies. If one of your opponent's is going to attack you, he or she will probably start to gather forces along one of your borders. So send an equally or larger force to protect your territory. Fortify your borders against enemy attack. Make sure that you place reinforcements along your borders to make it harder for enemies to penetrate your territory.
Summary: Make sure that you understand the rules. Play often and with more experienced players. Use the three basic strategies described in the Risk rulebook.

In one sentence, describe what the following article is about: Singing in a new place can be a little frightening. To get around this, go to the stage when no one else is around. Take some time to walk around and look out towards where the audience will sit. If you can, ask to test out the sound system or a microphone. You may not be able to practice at the venue, such as if you want to perform at a karaoke bar. You can, however, go to the bar and listen to other people perform. Flex not only your vocal cords, but your body as well. In addition to vocal warm-ups, such as humming notes in your vocal range, do some basic yoga poses. Raise your arms, touch your toes, dance around, and loosen up. Staying active can help you forget your worries while also preparing your body for singing. Any good stretch can help, but don't go overboard and hurt yourself. To get out excess energy and adrenaline, do some jumping jacks or air punches. Always loosen your vocal cords before singing. Try choosing a word like "Re" and singing it up and down your vocal range. An important part of building confidence is mastering your posture while singing. Plant your feet firmly on the ground, standing straight. Lower your shoulders, keeping your head level with your audience. This keeps your airways free, allowing you to project your voice. Even the act of standing in a position like this can cause you to feel a little more confident. In addition, your singing voice improves, leading to even more confidence. Slowly breathe in and breathe out. Let the air go all the way down to the bottom of your lungs. You will need all that air when projecting your voice. You can also do this while singing. Focus on taking a deep breath, then using the air to radiate your voice out from the center of your chest. Deep breathing is calming. By breathing away any nervousness, you can relax, focus on your voice, and gain confidence. To further calm your nerves and help you focus on your performance, spend a few minutes doing a mindful meditation. You can find guided meditations here: http://marc.ucla.edu/mindful-meditations Singing from your diaphragm also makes your voice stronger and helps you reach higher notes, so deep breathing is an essential technique for newer vocalists to learn. All professional singers make mistakes. They don't let this stop them, however. They take risks when choosing songs and keep going when they slip up during a performance. Most of the time the audience won't recognize a mistake and won't remember it after you're done singing. Starting out can be scary, but mistakes are normal and help you grow. Remember that mistakes can't harm you. What matters is how you react to them. Don't be afraid to take risks with your performances! Choose challenging songs, go for that tough note, or sing in front of an unfamiliar audience. Get lost in the song, not your audience's thoughts. You're not a fortune-teller and their thoughts don't matter when you're performing. Nail your song's lyrics and your singing technique no matter what you think of the audience. If you have to, imagine that the audience is cheering for you. Focus on the lyrics and meaning of the song. Remember why the song is important to you and why you want to share it with the audience. Even if music isn't in a language you understand, it can still move you. Express the music's sound and energy, since this is what will captivate your audience. You don't even have to look much at the audience. Instead of looking directly at someone's face, look at their forehead or look past them towards the back of the room so you don't get distracted. Many professional singers struggle with stage fright. While you may not be able to eliminate it completely, you can lessen it by using tools like cognitive appraisal. Rather than focusing on what could or did go wrong, think about what could or did go well! You can even channel the boost of adrenaline from fear into your performance.
Summary:
Spend time at the venue before you need to perform. Stretch out your entire body before you need to perform. Stand upright with your shoulders relaxed. Breathe deeply before beginning to sing. Avoid stopping if you make a mistake. Focus on your song instead of the audience. Take steps to lessen stage fright.