In one sentence, describe what the following article is about: Don't unfold the entire stem. Just slightly unfold the section at the bottom. Use your finger to crease along the folds. Slightly unfold the corners. Use your finger to push the tip of the left corner inside the corner itself. Once the corner is pushed in, crease the folds. You should now have a flat, diagonal edge along the bottom left side of the stem of the “7” shape. Pull the tip of the right corner to the left and curl it under so it reaches. Fold along the crease with your fingers. Don't unfold the whole top. You just want to slightly unfold the left side. Use your finger to make a crease along the folds. Push the tip of the top corner inside of the corner until the corner is folded inside of itself. When you're finished, you'll have a diagonal edge along the top of the top of the “7” shape. Do this just like you did on the stem of the “7” shape. Pull the bottom corner up and curve it down so it tucks into the inside reverse fold at the top. Crease along the fold with your finger. Your origami boomerang is complete! Hold the middle of the boomerang between your thumb and index finger. Throw the boomerang horizontally like you're throwing a frisbee. Flick your wrist out as you throw the boomerang so it spins in the air.
Summary: Unfold the bottom of the stem on the “7” shape. Fold the bottom left and right corners into the center crease. Make an inside reverse fold using the left corner. Tuck the right corner between the 2 layers of the left reverse fold. Unfold the left side of the top of the “7” shape. Fold the top and bottom corners into the center crease. Make an inside reverse fold using the top corner. Tuck the the bottom corner between the 2 layers of the top reverse fold. Try out your origami boomerang.

In one sentence, describe what the following article is about: Yoga can help to increase your GABA levels by increasing your ability to focus and be mindful in the moment. The practice of yoga often combines holding postures and deep breathing in a flowing sequence. This can help you to breathe through psychological stress and help you learn how to cope with anxiety. Doing yoga two to three times a week can help to increase GABA. Try taking a yoga class at your gym or at a local yoga studio. Do yoga at home by following online yoga instruction videos. Enlist a friend or family member to do yoga with you if you need a little motivation. Physical exercises that increase your cardio levels have been shown to help increase your GABA levels. Walking and running three to four times a week at a brisk pace can contribute to higher levels of GABA. Join a running group to help you stay motivated to run. Make a good running playlist to help you stay motivated during your runs. Find a friend or family member to go on brisk walks with you on a regular basis. Meditation and deep breathing can both help to increase your GABA levels. Do meditation and deep breathing at home in a quiet, secluded spot. To do deep breathing, close your eyes in a comfortable seated position and inhale to the count of four. Then, exhale to the count of four. Repeat this several times until you feel calm. You can also try taking a meditation and deep breathing class at a meditation center in your area or through a yoga studio.
Summary: Do yoga. Take up walking or running. Try meditation and deep breathing.

In one sentence, describe what the following article is about: Acid leaks out of batteries over time, collecting on the terminals. Take safety precautions to avoid coming into contact with it. Wear long clothing and put away any jewelry as well. You do not need to unhook the batteries, but you do need to make sure electricity isn’t flowing to them. Turn off the golf cart and unplug the charger. Then, push against the vent caps on the batteries to make sure they are tightly in place. Leave the vent caps in place to avoid letting any chemicals get into the batteries. Baking soda is a very effective natural cleaner that also happens to neutralize acid. Get a clean mixing container. Pour the 2 ingredients in, then stir them into a paste. For example, you can start by mixing 1 oz (28 g) of baking soda into 1  fl oz (30 mL) of water. Make more as needed. Dip a clean cloth into the mixture and wipe it over the acid. The type of cloth doesn’t matter. If you have an old toothbrush, you can also use it to spread the mixture and scrub it into the acid. The mixture is primarily meant to polish the terminals and connectors, but you can use it to wash off the rest of the battery. Lightly dampen a clean cloth in lukewarm water. Wipe down all of the areas coated with the baking soda mixture. Follow up by using another clean cloth to absorb any remaining water.  The metal components should look bright again. If they aren’t, you probably missed some of the corrosion. Repeat the steps to clean it off. Make sure you also get any water that has dripped or spilled around the batteries. You can purchase a battery anti-corrosive spray online or from auto parts stores. Coat the terminals and the metal connectors on the battery cables every time you clean off the batteries. A regular anti-corrosive application after cleaning ensures your battery lasts as long as possible.  If you need more space to work with, detach the cables from the terminals. This way, you can easily reach both parts. You can also use petroleum jelly or a silicone gel instead of the anti-corrosive spray. Ideally, clean the batteries off once a month. Doing this can make your batteries last up to 3 years longer than normal.
Summary:
Wear safety gloves and glasses. Unplug your golf cart and check the vent caps. Mix equal amounts of baking soda and water. Brush the mixture onto the battery terminals. Rinse and dry the batteries with clean cloths. Spray an anti-corrosive onto the battery terminals and clamps.