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A28    SCIENCE
                Tuesday 18 december 2018
            Most teen drug use is down, but officials fret vaping boom




            By MIKE STOBBE                                                                                                      LSD,  ecstasy,  heroin  and
            NEW YORK (AP) — Twice as                                                                                            opioid pills all declined.
            many high school students                                                                                           Experts  say  it's  not  clear
            used  nicotine-tinged  elec-                                                                                        what's behind those trends,
            tronic  cigarettes  this  year                                                                                      especially since the nation
            compared  with  last  year,                                                                                         is in the midst of the deadli-
            an  unprecedented  jump                                                                                             est drug overdose epidem-
            in a large annual survey of                                                                                         ic ever.
            teen smoking, drinking and                                                                                          "What  is  it  that  we're  do-
            drug use.                                                                                                           ing  right  with  teenag-
            It  was  the  largest  single-                                                                                      ers  that  we're  not  doing
            year  increase  in  the  sur-                                                                                       with  adults?"  said  Dr.  Nora
            vey's 44-year history, far sur-                                                                                     Volkow,  director  of  the
            passing  a  mid-1970s  surge                                                                                        National  Institute  on  Drug
            in marijuana smoking.                                                                                               Abuse,  a  federal  agency
            The findings, released Mon-                                                                                         that  funds  the  Michigan
            day, echo those of a gov-                                                                                           study.
            ernment  survey  earlier  this                                                                                      One  leading  theory  is  that
            year. That survey also found                                                                                        kids  today  are  staying
            a  dramatic  rise  in  vap-                                                                                         home and communicating
            ing  among  children  and                                                                                           on smartphones rather than
            prompted  federal  regula-                                                                                          hanging  out  and  smoking,
            tors  to  press  for  measures   In this April 11, 2018 file photo, a high school student uses a vaping device near a school campus   drinking or trying drugs.
            that make it harder for kids   in Cambridge, Mass.                                                                  "Drug  experimentation  is
            to get them.                                                                                       Associated Press   a  group  activity,"  Volkow
            Experts  attribute  the  jump                                                                                       said.  What  about  vaping?
            to newer versions of e-cig-  ever. They can do it in class  are  based  on  responses  the past year. It was more  "Vaping  mostly  is  an  indi-
            arettes,  like  those  by  Juul  if  they're  sneaky  about  it,"  from about 45,000 students  common  in  older  kids  —  vidual  activity,"  said  David
            Labs  Inc.  that  resemble  she said.                     in  grades  8,  10  and  12  in  about  1  in  17  high  school  Jernigan,  a  Boston  Univer-
            computer  flash  drives  and  Olivia  Turman,  a  freshman  schools across the country.  seniors  said  they  use  mari-  sity  researcher  who  tracks
            can be used discreetly.      at  Cabell  Midland  High  It  found  1  in  5  high  school  juana every day.         alcohol use.
            Trina Hale, a junior at South  School  in  Ona,  West  Vir-  seniors  reported  having  Overall, marijuana smoking  The vaping explosion is a big
            Charleston  High  School  in  ginia, said she too has seen  vaped nicotine in the pre-  is about the same level as  worry, however. Health offi-
            West  Virginia,  said  vaping  kids "hit their vape in class."  vious month.           it  was  the  past  few  years.  cials say nicotine is harmful
            —  specifically  Juul  —  ex-  The  federally  funded  sur-  After  vaping  and  alcohol,  Vaping  of  marijuana  rose,  to developing brains. Some
            ploded  at  her  school  this  vey  released  Monday  is  the  most  common  thing  however.                        researchers  also  believe
            year.                        conducted by University of  teens use is marijuana, the  More  teens,  however,  are  vaping will make kids more
            "They  can  put  it  in  their  Michigan  researchers  and  survey found. About 1 in 4  saying  no  to  lots  of  other  likely to take up cigarettes,
            sleeve or their pocket. They  has  been  operating  since  students  said  they'd  used  substances.  Usage  of  al-  and perhaps later try other
            can do it wherever, when-    1975.  This  year's  findings  marijuana at least once in  cohol, cigarettes, cocaine,  drugs.q

                                                                      Farout: Scientists spot solar



                                                                      system's farthest known object



                                                                      By MARCIA DUNN               Scott  Sheppard  said  the  (500 kilometers) across and
                                                                       AP Aerospace Writer         object  is  so  far  away  and  believed  to  be  round.  Its
                                                                      CAPE    CANAVERAL,     Fla.  moving so slowly it will take  pink  shade  indicates  an
                                                                      (AP)  —  Astronomers  have  a  few  years  to  determine  ice-rich object. Little else is
                                                                      spotted the farthest known  its orbit. At that distance, it  known.
                                                                      object  in  our  solar  system  could take more than 1,000  The discovery came about
                                                                      — and they've nicknamed  years to orbit the sun.          as  the  astronomers  were
                                                                      the  pink  cosmic  body  Sheppard  and  his  team  searching  for  the  hypo-
            This  image  provided  by  the  Carnegie  Institution  for  Science   "Farout."        spied  the  dwarf  planet  in  thetical Planet X, a massive
            shows an artist's concept of a dwarf planet that astronomers say   The   International   Astro-  November  using  a  tele-  planet  believed  by  some
            is the farthest known object in our solar system, which they have   nomical Union's Minor Plan-  scope in Hawaii. Their find-  to be orbiting the sun from
            nicknamed "Farout."                                       et  Center  announced  the  ing  was  confirmed  by  a  vast distances, well beyond
                                                     Associated Press   discovery Monday.          telescope in Chile.          Pluto.q
                                                                      "Farout"  is  about  120  as-  "I  actually  uttered  "farout"
                                                                      tronomical    units   away  when  I  first  found  this  ob-
                                                                      —  that's  120  times  the  dis-  ject,  because  I  immedi-
                                                                      tance  between  Earth  and  ately  noticed  from  its  slow
                                                                      the  sun,  or  11  billion  miles.  movement  that  it  must  be
                                                                      The previous record-holder  far  out  there,"  Sheppard
                                                                      was the dwarf planet Eris at  wrote in an email. "It is the
                                                                      96 astronomical units. Pluto,  slowest  moving  object  I
                                                                      by comparison, is 34 astro-  have  ever  seen  and  is  re-
                                                                      nomical units away.          ally out there."
                                                                      The  Carnegie  Institution's  It is an estimated 310 miles
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