11. triskaidekaphobia means fear of the number thirteen. statistics “According to the Stress Management Center and Phobia Institute in Asheville, North Carolina:estimate 17 to 21 million people in the United States are affected by a fear of this day”
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13. In Korea, Japan and China have the fear of tetraphobia ( number 4)
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15. Psychotherapy Relaxation techniques Medication “Medications to treat anxiety may be used for treatment of symptoms, but there are no studies that support the efficacy of medication in the treatment of specific phobias”. Treatment
16. Events that are notable With Friday the 13th. Hurricane Charley made landfall in south Florida on Friday, August 13, 2004. The "Friday the 13th Storm" struck Buffalo, New York on Friday, October 13, 2006. The asteroid 99942 Apophis will make a close encounter with Earth, closer than the orbits of communication satellites, on Friday, April 13, 2029. Uruguayan air force flight 571 crashed in the Andes on Friday October 13 1972.