Report Abuse. 1  For the best answers, search on this site https://shorturl.im/aw2eZ. 2  I think that the average person can walk a mile in 20 minutes. 3  I walk a mile in 16min....I'm 63yrs old...I do walk rather fast....I average 2.6hours to walk 10 miles....I do that everyday....lol.  20 to 30 minutes.
When cataplexy is present, the cause is most often the discrete loss of brain cells that produce hypocretin. Although the reason for such cell loss remains unknown, it appears to be autoimmune in nature (an autoimmune disorder is when the bodyâs immune system mistakenly attacks healthy cells or tissue).
Most cases of narcolepsy are sporadic-that is, the disorder occurs independently in individuals without strong evidence of being inherited. But familial clusters are known to occur. Up to 10 percent of patients diagnosed with narcolepsy with cataplexy report having a close relative with the same symptoms.