Q: If your toothbrush is beginning to fray at the edges, it is no longer fit to brush teeth, and is ready for a new life. Fraying means that the outer edges of the bristles have splayed outward. If the bristles have only a slight outward curve, your toothbrush probably still has some life as a toothbrush left in it. Some toothbrushes are equipped with a small line (usually blue) that will gradually fade and disappear as the lifespan of your toothbrush deteriorates. If your toothbrush has a fading line to indicate when it is time to be replaced, pay attention and set it aside for other uses once this line has disappeared. While reusing old toothbrushes is wonderful, your mouth is known for harboring quite a lot of bacteria. Before reusing a toothbrush, make sure you submerge it in boiling water for 3-5 minutes to sanitize it.  Stick around while your toothbrush boils; plastic can break down quickly, and you don't want to come back to a mess of melted plastic. If you are not comfortable boiling your toothbrush, you can also run it through a dishwashing cycle. Just as you would with a toothbrush for your teeth, make sure your old toothbrushes are dry before giving them a new purpose; if they are left wet, mold and bacteria are invited to grow. Drying a toothbrush is simple. All you have to do is store it in an upright position and allow the water to drain from the bristles. Because you are not using the toothbrush on your teeth, you could expedite the process by first drying the bristles with a towel or cloth. To avoid mixing up your cleaning toothbrush with one you are currently using for oral health, label your toothbrush. You can make a mark with a permanent marker on the back of it, or place it inside of your cleaning supply bucket--just make sure it is clear that the brush should not be used in your mouth.
A: Check for fraying. Check your brush's fade line. Sanitize before repurposing. Dry thoroughly. Label your toothbrush.

Article: Intentional breathing is a simple activity, but it's one of the most powerful ways to create peace of mind. Emotions and breathing are closely connected. If you slow your breath and learn to breathe evenly and fully, your emotions will calm down as well. Breathing practices have been shown to reduce cortisol, the stress hormone. They also activate the "rest and digest" part of the nervous system, known as the parasympathetic nervous system. Here are steps you can take:  Find a comfortable place to sit. Put one hand on your belly and one on your chest. Breathe in deeply from your belly, so that your stomach extends out but your chest stays in place. Hold this breath for a couple seconds and then breathe out. Repeat this sequence until you find a steady rhythm. Try to do this practice for 10 minutes every day. Regular exercise is one of the best things you can do for your body and mind. You should do 30-60 minutes of aerobic exercise (walking, running, bicycling, swimming, etc) 3-5 times per week for good results. Here are some of the things exercise does:  Lifts your mood by flooding your brain with endorphins and serotonin, which are "happy chemicals" in the brain.  Boosts your energy and reduces fatigue.  Improves sleep, even chronic insomnia.  Reduces your risk for diseases such as cardiovascular disease and type 2 diabetes. Sunlight produces Vitamin D in your body, which also increases your serotonin levels. You can't get the same effect from indoor lighting, so try to spend time outside when you can. Here are some activities you can do:  Play sports. Go for a swim. Pack a picnic. " One of the best ways to experience peace of mind and happiness is to get into a flow state. A flow state is where you are completely involved in an activity without overthinking things. You enter flow states when you are doing things you love and when you are being challenged in a way that's suitable to your abilities. Do what you love to do. This could be anything from playing darts on the weekend to landing your dream job as an accountant. Generosity actually causes us to be happier and increases peace of mind. Giving away money can decrease the stress hormone cortisol. It can also extend how long you live, and it can even promote mental health. People who are more generous are less likely to be depressed. How you want to be generous is up to you, but here are a few suggestions:  Volunteer at a soup kitchen or another community service organization. Donate to your favorite charity. Offer to help friends and family members with finances, home development, or babysitting. Being grateful for what you have in life is a great way to develop peace of mind. Gratefulness decreases stress and increases things like optimism and life satisfaction. You don't even need to have a lot to be grateful; there's always something you can be grateful for. Here are steps you can take to be more grateful:  Keep a gratitude journal. People who have a gratitude journal feel better about their lives as a whole. Each day, write down what you're thankful for. See the positive side to challenges. For example, if you have a noisy neighbor, this can improve your patience and ability to deal with irritation. People generally prefer being with others to being alone. Also, connecting with other people gives us an endless stream of peace and happiness. Many sources of "quick fix" happiness or peace of mind tend to go away the more we engage in the activity, but spending time with people we are close to seems to be an exception.  For example, if you identify with a particular religion, find a good church, temple, mosque, or synagogue to attend. For more examples, join a sports team or a reading group. Creative arts can be a powerful source of happiness and peace of mind. Different ways to express yourself artistically can help you feel better about your life. Here are a few suggestions for things to do:  Draw, color, or paint. You don't have to be amazing; you'll get the benefits of catharsis and engaging your imagination either way. Dance. Join a dance class or just make a habit out of dancing to music in your home. Play an instrument. Guitar, piano, and other instruments are a great way to express yourself through music.
Question: What is a summary of what this article is about?
Breathe. Exercise. Get enough sunlight. Pursue the "flow state. Be generous. Cultivate gratitude. Join a community. Express yourself.

Q: Let's say you're working with the following problem: 5 - 3/4. Write it down. You'll want to convert the number 5 into a fraction with the denominator of 4 in order to subtract the two numbers. So, you can first think of 5 as a fraction that is really 5/1. Then, you can multiply both the top and bottom of the new fraction by 4 in order to create two fractions with the same denominator. So, 5/1 x 4/4 = 20/4. This fraction is really equal to 5, but it allows you to subtract two fractions. The new problem can be written like this: 20/4 - 3/4. Now, you can simply subtract 3 from 20 to get the final answer. 20 - 3 = 17, so 17 is your new numerator. You can keep the denominator as it is. Your final answer is 17/4. If you'd like to state it as a mixed number, simply divide 17 by 4 to get 4, with 1 left over as the remainder. This will make your final answer 17/4 equal to 4 1/4.
A:
Write down the problem. Turn the whole number into a fraction with the same denominator as the fraction. Rewrite the problem. Subtract the numerators of the fractions while keeping the denominator the same. Write your final answer.