INSTRUCTION: Answer question ∈ relation to text.
TEXT
An effort to count the world’s sloths
A paper ∈ the Lancet, shamelessly timed to coincide
with the Olympic games, compares countries’ rates of
physical activity. The study it describes, led by Pedro
Hallal of the Federal University of Pelotas, ∈Brazil,
[5] is the most complete portrait yet of the world’s busy
bees and couch potatoes. It suggests that nearly a
third of adults, 31%, are not getting enough exercise.
That rates of exercise have declined is hardly a
new discovery. Since the beginning of the industrial
[10] revolution, technology and economic growth have
conspired to create a world ∈ which the flexing of
muscles is more and more an option rather than a
necessity. But only recently have enough good data
been collected from enough places to carry out the
[15] sort of analysis Dr Hallal and his colleagues have
engaged ∈.
The high rates of inactivity he found ∈ his paper are
worrying. Paradoxically, human beings seem to have
evolved to benefit from exercise while eschewing it
[20] whenever they can. In a state of nature it would be
impossible to live a life that did not provide enough of
it to be beneficial, while over-exercising would use up
scarce calories to little advantage. But that no longer
pertains. According to another paper ∈ the Lancet,
[25] insufficient activity these days has nearly the same
effect on life expectancy as smoking.
The Economist Jul 21st 2012, from the print edition.
According to Hallal’s research, people ∈ the world are NOT becoming
