prescriptions written by 158
doctors from 2006 to 2015,
the researchers found that only
55 percent were indicated for
depression. Eighteen percent
were prescribed for anxiety dis-
orders, 10 percent for insomnia,
6 percent for pain and 4 percent
for panic disorders.
TEENS AND MARIJUANA
Adolescents’ use of marijuana
and rate of marijuana use disorders fell from 2002 to 2013
in the United States, according
to research in Child and Adolescent Psychiatry. Researchers
analyzed data from 216,000
teens collected as part of the T O P
Bird brains have
than once thought,
which may explain
via video-conferencing. Parents in both groups learned to
use the intervention technique,
though those with coaching
made greater gains. Children
in both groups improved their
language skills, and children in
the therapist-assisted group also
improved in social skills.
BE A COMPLIMENT?
Birds’ brains contain many more
neurons than mammalian brains
of the same mass, according to
a study in the Proceedings of the
National Academy of Sciences.
The neurons in avian brains
are smaller and more densely
packed, the researchers found.
So, for example, a macaw
parrot brain the
size of a
walnut has more neurons than a
macaque monkey brain the size
of a lemon. This may explain
why some birds can accomplish
such complex cognitive tasks
as planning for the future and
finding patterns, despite having
relatively small brains.
Primary-care doctors fre-
quently prescribe antidepressant
medications for nondepressive
symptoms, according to a study
in the Journal of the American
Medical Association. The research
examined prescription records
from an electronic medical
record system used by primary-
care physicians in Quebec. Of
the 101,759 antidepressant
National Survey on Drug Use
and Health. In 2002, 16 percent
reported using marijuana during
the previous year; in 2013 it
had dropped to 14 percent. In
2002, 4 percent of teens reported
marijuana-use disorders such
as becoming dependent on the
drug; in 2013, it was 3 percent.
Alcohol intervention programs
don’t work for college fraternity
members, suggests a meta-analysis in Health Psychology.
Researchers analyzed 15 studies
that spanned 25 years and included 21 different interventions
and 6,026 total participants ( 18
smoking less pot.