Summarize this article in one sentence.
Many fears are based in false beliefs or catastrophic thinking. When you see a spider, you may immediately have a belief that says that the spider will harm you, and that you will die. Identify these patterns of thinking, and start to question them. Do some online research and understand your actual risk versus perceived risk. Recognize that the worse-case scenario is highly unlikely. Begin to re-structure your thoughts to not engage in catastrophic thinking, and start to talk back to those thoughts. When your fear arises, pause and reflect on your actual risk. Talk back to your negative thoughts or false beliefs and say, “I recognize that some dogs are vicious, but the vast majority of dogs are gentle. It is unlikely I will get bitten.” After you have confronted your false beliefs, begin to expose yourself to the fear. Oftentimes we're afraid of something because we haven't been exposed to it very much. "Fear of the unknown" is a commonly used phrase to describe the automatic aversion people feel to something that's different.  If you're afraid of dogs, start by looking at a badly drawn doodle of a dog done in silly colors. Look at it until you feel no fear response. Then, look at a photo of a dog, then a video of a dog. Examine it until no fear response exists. Go to a park where you know one or a few dogs will be on-leash and watch them until you feel no fear. Go to a friend’s house who has a dog and watch him interact with a dog until no fear response is elicited. Ask a friend to let you touch or pet his dog while the dog is restrained by your friend until you feel neutral. Finally, be near a dog and spend one-on-one time with a dog. The power to label your emotions is beneficial for self-understanding and emotional intelligence. It also appears that engaging with a fear and verbalizing your fear has incredible power to help you overcome fears and regulate emotions. Researchers had spider-fearful individuals exposed to a spider, and participants that labelled their fears (“I feel very scared of this spider”) had a lower fear response the following week when exposed to a different spider. Running from fears never improves the way you feel about a fear. Next time you experience a fear, verbally engage the fear, using words that describe your fear and anxiety. When your body experiences fear, lots of triggers ready your body for a “fight-or-flight” action response. Learn to override this response by counteracting with relaxation techniques. Relaxation tells your body that there is no danger and that you are safe. Relaxation can also help you cope with other stress and anxiety in your life.  Try deep breathing exercises. Focus on your breath, and start counting each breath: four seconds inhale, then four seconds exhale. Once this is comfortable, elongate your breath to six seconds. If you notice your muscles tensing, be conscious to relax them. One way to do this is to clench all the muscles in your body for three seconds, then relax them.  Do this two or three times to melt stress throughout your body.

Summary:
Identify false beliefs. Try gradual exposure. Practice engaging with the fear. Learn relaxation techniques.