The best way to treat head lice is to use a fine tooth comb and extract all the nits (small eggs attached to hair) by hand and then treat the hair with an over-the-counter or prescription product. Watch this video by the American Academy of Dermatology to learn how to get rid of head lice.
Incidence of Panic disorder: About 1.7% of the adult U.S. population ages 18 to 54 - approximately 2.4 million Americans-has panic disorder in a given year. (Source: excerpt from Facts about Panic Disorder: NIMH).
At the time of the attacks, media reports suggested that tens of thousands might have been killed, as on any given day upwards of 100,000 people could be inside the towers. Estimates of the number of people in the Twin Towers when attacked on September 11, 2001 range between 14,000 and 19,000.