In one sentence, describe what the following article is about: It's the blue and white smiley face icon on the bottom-left of your Mac's dock. This will open a new Finder window, allowing you to explore your Mac. It's in the left-hand column of the Finder window. It's the blue folder near the bottom of the page with the image of a screwdriver and wrench on it. It's the app with the icon of a hard drive with a stethoscope. This display information about the disk drives you have installed on your Mac. All the disk drives you have installed will be listed in the sidebar to the left. Click a drive to select it. It's the tab at the top of the screen that has an icon of a stethoscope. A pop-up will appear asking if you would like to run First Aid on the drive. It's in the lower-right corner of the pop-up window. If you are running First Aid on your boot disk, the boot volume will be temporarily frozen and other apps won't respond until the operation is completed. This will show a report of any problems found on the disk drive. Messages with red text indicate a problem was found with the disk drive. The final message will tell you if the SSD needs to be repaired. It's the blue button in the bottom-right corner of the First Aid summary window. This closes the First Aid pop-up window in the Disk Utility app.
Summary: Open a new Finder window . Click Applications. Double-click the Utilities folder. Double-click Disk Utility. Select your SSD drive. Click First Aid. Click Run. Click Continue. Click Show Details. Click Done.

In one sentence, describe what the following article is about: Bring your hot water temperature down to 120 degrees Fahrenheit (48.9 degrees Celsius) if it is set higher than that. Hot water heaters can usually be adjusted with a valve. Setting a limit on the hot water can prevent you, or your children, from being scalded by turning the hot water up too high. Cranking on the faucet and jumping into the shower can result in scalding your skin. Wait a minute or so to allow the temperature to heat up, and adjust it before stepping in. Remind children not to adjust the taps by themselves, but rather to ask an adult for help. Turning the handle may seem fun to a child as they may be unaware that the water can get too hot and could burn or scald them. Never leave a child unattended in the bathtub. Monitor the child as well as the water to ensure it does not get too hot. Make sure hot drinks and liquids are not placed on the edge of tables or counters. This will ensure that no one is scalded by food or drinks that are too hot. Be especially cautious when serving children. Never heat a baby bottle in the microwave, as it may warm unevenly and develop "hot spots" that could scald a child's mouth.
Summary: Ensure your hot water isn't too hot. Test the water temperature before getting into the tub or shower. Do not carry or pass a hot drink or liquid over a person's head. Test the temperature of food and drinks before serving.

In one sentence, describe what the following article is about: It's important to let the broiler warm up for several minutes before you toast the bread, otherwise you may have an unevenly toasted sandwich. You can find the "broil" setting on the far end of the oven-temperature dial on most ovens. The number of times you drain and rinse it is up to you, but draining and rinsing it at least once is recommended. Use a can opener to open the can, but don't remove the lid. Holding the lid in place, flip the can over and hold it over the sink until all the liquid has drained. Remove the top of the can, and be careful not to cut yourself. Take the tuna out of the can and place it in a strainer or colander. Rinse the tuna thoroughly with water, then press the water out using a clean hand or a paper towel. In a medium bowl, mix together tuna, lemon juice, tomato, celery, green onion, and sour cream. Stir to combine. Be sure to mix thoroughly so that all of the ingredients are evenly distributed. Add salt and pepper to taste. Scoop out the top of each roll, leaving a hollowed out portion so that the rolls resemble small boats. Line the bottom of the boats with shredded lettuce. Fill each boat with 1/4 of the tuna mixture. Top with tomato, bacon (if using), and cheese. Place each of the rolls on a cookie sheet. Broil for 3 to 5 minutes, or until cheese is melted. Remove from heat, turn off the broiler, and serve.
Summary:
Pre-heat the broiler. Drain and rinse the tuna. Combine the ingredients. Prepare the bread. Assemble the sandwiches. Heat the sandwiches.