Q: Poor posture frequently causes or exacerbates lower back pain by placing more pressure on the lumbar region of your spine. Stand sideways in a natural position in front of a mirror and check the position of your back. If you are hunched over, or have a pronounced arch in your spine, you may find relief by adjusting your posture. Hold your pelvis level, not pitched forward or back. Lower your shoulders so that your shoulder blades are tucked in along either side of your spine. Lift the crown of your head toward the ceiling. Sit up straight in a chair and squeeze your shoulder blades together, then relax. Repeat 10 to 15 times. Do this exercise several times a day to help improve your posture. If you sit for hours on end at a desk job, that may be contributing to your lower back pain. Every half hour or so, stand up and walk around for about 5 minutes. This simple effort alone can help decrease your lower back pain. If possible, convert your work station so that you can work while standing part of the time. If your boss won't go for that, see if you can upgrade your chair to one that provides more lower back support. Make sure you're sitting straight with your feet flat on the floor, your shoulders back, and your head straight. Slouching or hunching over can put additional stress on your lower back, causing pain. Some foods can alleviate lower back pain, while other foods and drinks can exacerbate it. Potassium-rich foods such as bananas and leafy greens may provide some lower back pain relief. Lower back pain may be caused by constipation. High fiber foods, including fruits and vegetables, can help alleviate constipation and get you back on track. Make sure you're drinking at least 8 ounces of water a day, since dehydration can also play a role in lower back pain. Avoid processed sugar, aspartame, refined grains, caffeinated beverages (particularly sodas), and alcohol. Trouble falling asleep or staying asleep often goes hand-in-hand with chronic lower back pain. Often a few simple tweaks to your nighttime habits can improve your sleep quality. Turn off electronics a couple of hours before bed, and don't watch television in bed before going to sleep. If you can't fall asleep in silence, play relaxing music or run a fan for white noise in the background. Avoid caffeine, alcohol, and spicy foods several hours before bedtime. These substances can disrupt your sleep patterns. If you find you can't go to sleep after 20 or 30 minutes, get up and do something and then try again, rather than laying in bed tossing and turning. If simple changes don't do anything to change your sleep patterns, see a doctor who specializes in treating sleep disorders. There are non-habit-forming prescription sleep medications that may help you. If you find your lower back frequently hurts when you first wake up in the morning, your mattress may be the culprit. If your mattress is sagging, or if it's more than 7 years old, it might be time to look for a replacement. If a new mattress won't fit in your budget, consider investing in a mattress pad or topper. These may help make your bed more comfortable by adding extra padding to the top. You may also be able to remedy the effects of a poor mattress by sleeping in a different position. Try sleeping on your side with a pillow between your knees to keep your spine in alignment. Smoking decreases the oxygen reaching your tissues, which can cause stiffness and pain. Smokers also have a higher incidence spinal problems such as spinal stenosis, a painful condition where the spinal canal is not large enough for the spinal cord. If you are a smoker and want to quit, talk to your doctor and make a plan. Seeking support from family and friends will increase your chances of success. In the U.S., you can also call the national quit line at 1-800-QUIT-NOW. Stress can increase tension in your back, leading to lower back pain. While you may not be able to do anything about the aspects of your life that cause stress, you can develop better ways of handling stress. Consider adding low impact exercise to your daily routine, listening to relaxing music, or simply getting out in nature. Mindfulness meditation and journaling can help people deal with issues in their lives. You might also take up a relaxing hobby, such as coloring, crochet, or needlepoint.
A: Evaluate your posture. Stand every half hour. Adjust your diet. Address any sleep problems you have. Get a new mattress. Stop smoking. Take steps to decrease stress.

Q: Doing so will prompt an installation window to appear. It's to the right of the "Folder" address bar in the middle of the pop-up window. Doing so opens a new window. Press Ctrl+V (Windows) or Command+V (Mac) to paste in the copied address, then press Enter. This will ensure that OptiFine installs to your Minecraft directory. It's at the bottom of the OptiFine window. This confirms that OptiFine installed successfully. Click or double-click the Minecraft app icon, which resembles a grassy block of dirt. Doing so brings up the Minecraft launcher window. It's a tab in the upper-right corner of the window. This option is near the top of the list of Minecraft versions. Doing so brings up a page with several text boxes. In the "Name" text box, enter a name for your OptiFine configuration. It's below the "Name" box. Doing so prompts a drop-down menu. This is the drop-down menu option that has "OptiFine" and the current version number of your OptiFine installation in the title. It's a green button at the bottom of the window. In order to select OptiFine as the version of Minecraft to run, do the following: Click the News tab in the Minecraft launcher window. Click the upward-facing arrow to the right of PLAY. Click your OptiFine configuration's name. Click PLAY.
A:
Double-click the OptiFine setup file. Click . Enter the copied game directory address. Click Install. Click OK when prompted. Open the Minecraft launcher. Click Launch options. Click Add new. Enter a name. Click the "Version" drop-down box. Select the "OptiFine" release. Click Save. Run the OptiFine version of Minecraft.