In one sentence, describe what the following article is about: Eating a balanced, healthy diet will provide you with more energy and prevent you from feeling sluggish and fatigued. Therefore, you should increase the amount of healthy foods like fruit, vegetables, whole grains, low-fat dairy products and lean meats in your diet. On the other hand, you should reduce your intake of not-so-healthy foods such as those with a high salt, high sugar or high fat content. Fatigue is sometimes caused by anemia, which is a red blood cell deficiency often caused by a lack of iron in the diet. Eating more iron-rich foods can help to restore the levels of red blood cells in your system, so try to eat more lean meat, tofu, shellfish, beans and seeds. Alternatively, you could take an iron supplement, but speak to your doctor about this first. Eating omega-3 fatty acids has been shown to boost alertness and increase energy levels, in addition to numerous other healthful benefits. Human bodies do not produce omega-3 naturally, so it's important to include omega-3 food in your diet. You can do this by eating fatty fish such as salmon, mackerel and tuna. If you're not a fish fan, you can also find omega-3s in walnuts and flaxseeds, or you could take a fish oil supplement. Your energy levels are closely linked to your blood sugar levels, which may spike or fall as a result of overeating or under eating. Overeating will cause your blood sugar levels to spike, which may drain your energy and leave you feeling sleepy. Instead of eating three large meals a day, try eating six mini meals in order to spread your energy intake evenly over the day. Under eating or skipping meals over the course of the day will cause your blood sugar levels to dip, leaving you feeling weak and out of energy. Always eat breakfast (even a cereal bar is better than nothing) and snack on a piece of fruit or low-fat yogurt when you feel peckish.
Summary: Make healthy food choices. Eat iron-rich foods. Eat Omega-3s. Don't skip meals or overeat.

You may feel mentally or physically weak due to a lack of appetite and experience significant weight loss because you are not eating regularly. Your bones may feel sore, inflamed, or painful. You may also be susceptible to contracting infections and illnesses due to the multiple myeloma. The numbness may be due to bone pain or bone damage. You may find it difficult to stand or walk on your legs for a long period of time due to weakness or numbness. Some people have a higher risk of developing multiple myeloma than others. You can help your doctor narrow down the possible cause of your symptoms by informing them if you have any of the major risk factors. You may be at risk if you: Are over the age of 60. While people can develop multiple myeloma at an earlier age, the risk increases as you get older. Are male. Men are more likely than women to develop multiple myeloma. Are Black or of African descent. In the US, African Americans are approximately 2 times as likely to develop multiple myeloma as European Americans. Have a family history of multiple myeloma. You may be especially at risk if 1 or more of your siblings or parents has been diagnosed with the disease. Have ever been diagnosed with monoclonal gammopathy of undetermined significance (MGUS)the presence of an abnormal protein (called monoclonal protein) in your blood.
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One-sentence summary -- Notice if have chronic nausea, fatigue, and a lack of appetite. Check if you have constant bone pain and frequent illnesses. Notice if you experience a weakness or numbness in your legs. Determine if you are at risk for multiple myeloma.

Problem: Article: Logging in as root is not recommended for regular use, as it is very easy to perform commands that will render your system inoperable, and it also poses a security risk, especially if you are running an SSH server on your machine. Only log in as root when performing emergency repairs, such as dealing with disk failures or restoring locked accounts. Using sudo or su instead of logging in as root will help prevent unintended damage while logged in as root. Using these commands gives the user a chance to think about the command before severe damage is done. Some distributions, such as Ubuntu, leave the root account locked until you manually unlock it. Not only does this prevent users from unknowingly doing too much damage using the root account, it also secures the system from potential hackers, as the root account is typically targeted first. With a locked root account, hackers aren't able to gain access with it. See the previous section for instructions on unlocking root in Ubuntu. root as the user when logging into Linux. If the root account is unlocked and you know the password, you can log in as root when you're prompted to log in with a user account. Enter root as the user when prompted to log in. If you need root access to perform a command, use the method in the previous section. After entering root as the username, enter the root password when prompted. In many cases, the root password may be "password." If you don't know the root password, or have forgotten it, see the next section for instructions on resetting it. In Ubuntu, the root account is locked and cannot be used until it has been unlocked. There's a chance that the program you intend to run will have a negative effect on your system when it has root access. It's highly recommended that you use sudo or su to run programs instead of logging in as root.
Summary:
Consider using other methods for gaining temporary root access. Enter . Enter the root password as the user password. Avoid running complex programs while logged in as root.