Problem: Write an article based on this summary: Lay on your back on a carpeted floor or exercise mat. Hold the leg against your chest for about 30 seconds.

Answer: Bend your knees and keep your feet flat on the floor. This stretch is great for people who already have lower back pain. It stretches the lower back along with supporting muscles in the hips and glutes. Keep your other leg in a comfortable position - usually against the floor, either straight or bent at the knee. To add a hip-flexing element to the stretch, use your hands to rotate your leg by gently pulling your shin across your body.

Problem: Write an article based on this summary: Use a hot water bottle. Put on wool socks. Use body heat. Block any drafts in your room. Layer your sheets and blankets.

Answer: Look for a hot water bottle at your local drugstore. Most hot water bottles are made with a liquid that can be heated in a microwave. You can also use a more traditional hot water bottle that uses boiled water. Simply boil water on the stove and pour it into the hot water bottle. Place the hot water bottle under your sheets or a blanket, by your feet. It should stay warm all night long, warming your toes and your body. By morning, it will cool to a tepid temperature. Wool is a great material for insulation and retaining warmth. Your feet are often the first body part that starts to feel cold and due to poor circulation, you may have a hard time warming them up with just a blanket. Get several pairs of high wool socks and keep them by your bed. You may reach for them in the night, in the event you can't get warm. You may also want to invest in house slippers to keep your feet warm throughout the day. Look for thick slippers with rubber soles to keep your feet cozy and give you traction when walking around your home. A good way to stay warm at night is to move closer to your sleeping partner and reap the benefits of natural body heat. If you have a pet, you may consider allowing them to sleep in your bed, if only to keep you warm throughout the night. Drafts are openings between doors, window panes, and sometimes even the slates in your floors, that let cold air into your room. If you keep getting woken up by cold air in your room, check for any drafts by your door, your window panes, or in the corners of your room. Block these drafts with a rolled up blanket or a long pillow. This will help to prevent cool air from circulating in your room as you sleep. You can also hang long blankets over your door and your windows to prevent any cold air from outside from coming in through small cracks into your room. If you continue to wake up at night shivering due to the cold room, try layering your blankets over your sheets, alternating between a thin layer and a thick layer, to create more warmth. Down comforters are great for retaining heat and keeping you warm, as are wool blankets. Down sleeping bags, made for camping, will also keep you very warm throughout the night. Look for them at thrift stores, Goodwill, or camping stores.

Problem: Write an article based on this summary: Buy a student violin if you are a beginner. Select an intermediate violin for improved quality. Choose a professional violin if you are an advanced violinist. Buy an acoustic violin to play classical and folk music. Get an electric violin to play rock and jazz music. Inquire about a rent-to-buy program.

Answer: Student violins are usually made from less expensive woods and are manufactured by machines rather than by hand. These are less expensive, typically ranging from $100 to $800 and are perfect for beginners. If you are just starting to take violin lessons, you may not want to invest in an expensive and high quality violin only to discover that this is not the instrument for you. Once you have been playing the violin for a few years and want to improve the overall quality and sound of your instrument, you should upgrade to an intermediate level violin. Some brands will not produce an intermediate level violin, but those that do price them around $1,000. Professional violins are hand-crafted by a master luthier and are made from high quality wood. These instruments can cost thousands of dollars and are ideal for professional musicians or art collectors. Traditional acoustic violins create warm and rounded tones as a result of the natural resonance of the tonewood. These instruments are best suited for classical and folk music. It is possible to attach an amplifier to an acoustic violin. If you only need an amp for some songs, it is best to stick with an acoustic violin. Electric violins have built in pickups that amplify the sound and produce a brighter and more raw sound than the acoustic violin. This is preferred if you are playing rock or jazz music. Consider the type of music you like. If you listen to rock music, you may be more inclined to use an electric instrument that can create a rock sound. If you are just starting out with playing the violin, you may prefer renting prior to making an investment. In many instances, you can actually rent the violin to begin with and then eventually buy the violin. Your rent payments will go towards the purchase price.

Problem: Write an article based on this summary: Swipe right on your iPad's screen to unlock it. Open your "Settings" app. Scroll until you find the "Passcode" option, then tap it. Tap "Turn Passcode On". Enter a passcode of your choosing. Confirm your passcode by typing it in again. Press your lock button to lock your iPad. Swipe right on your iPad's screen, then enter your passcode.

Answer:
Once you enable your passcode, this is the screen on which you'll enter it. This is the grey gear app on your home screen. If this is your first time enabling a passcode, "Turn Passcode On" will be the only selectable option. If your iPad supports Touch ID, this option will be called "Touch ID & Passcode". Your iPad will prompt you for your desired 6-digit passcode. You'll need to enter it again exactly the same way on the next screen to verify. If both your new passcodes match each other, you'll be taken back to the "Passcode Lock" screen. You still need to confirm that your passcode is active. Your iPad is now passcode-protected! You can change or remove your passcode at any time in the "Passcode" menu.