What is a one-sentence summary of the following article?
Mindfulness meditation is one of the most popular styles of meditation for reducing anxiety. To practice it, you must simply focus all of your attention on the present moment, which helps retrain the brain not to fixate on the past or on the future.  It's natural for your thoughts to wander, so don't get discouraged. If thoughts or emotions come up, acknowledge them, but do not judge yourself for them. Then do your best to replace them with thoughts about the present. Keeping your eyes open will help you stay focused on the present.  Many people like to consciously focus on their breathing while meditating, which helps keep breaths deep, while also preventing other thoughts from taking over the mind. If you are having trouble staying focused on your breath, you can try counting your breaths or repeating the words "inhale" and "exhale" to yourself silently. Loving-kindness meditation is similar to mindfulness meditation in that you replace unwanted thoughts with other thoughts. Instead of focusing your thoughts on the present moment, however, you can focus them on anything that involves love and kindness.  Your thoughts should express love and kindness towards yourself, as well as towards others. You can practice mindfulness meditation and loving-kindness meditation together, as they complement each other nicely. Guided meditation is sometimes called visualization. This meditation style involves thinking deeply about a place or situation that you find relaxing. When practicing this type of meditation, you should try to engage all of your senses by imagining the sights, smells, sounds, tastes, and feelings that you would experience if you were really there. Guided meditation can be done alone, but it is often done in a class under the instruction of a teacher. If you choose to practice transcendental meditation, you will repeat a mantra to yourself to help achieve relaxation. This mantra can be any word, phrase, or sound that you find comforting. The way you say the mantra is also important. You should be focusing deeply on every aspect of the mantra. Meditation does not always have to be done sitting down. In fact, there are a variety of practices that combine exercise and meditation. If you don't like sitting still, this may be the perfect option for you.  Tai chi, qi gong, and yoga are all practices that involve movement, as well as meditation. If you are interested in learning one of these practices, they are offered at many fitness clubs and community centers. You can also try watching an instructional video. If you want to add a less structured physical component to your meditation practice, you can also consider walking while you meditate. As long as you are able to stay focused, this movement should not inhibit your meditation at all.

Summary:
Practice mindfulness meditation. Consider loving-kindness meditation. Try guided meditation. Experiment with transcendental meditation. Incorporate movement into your meditation.