Though not directly dealing with
skin care issues, the Washington Post article offers good tips to those who are
conscious of their weight, diet, lifestyle as well as appearance.
Citing a recent study of York University
which looked at dietary and exercise data for thousands of Americans over the past four
decades, it says an unsettling but perhaps not so surprising trend has been
noticed: Even when one had the same diet and same activity level, a given
adult in 2006 had a higher BMI than a counterpart of the same age in
1988.
In other words,“ at 25, you’d have
to eat even less and exercise more than those older, to prevent gaining
weight,” Jennifer Kuk, a professor at York, and co-author of study said: “Ultimately,
maintaining a healthy body weight is now more challenging than ever.”
Just how much more challenging? When
comparing people with the same diets in 1971 and 2008, the more
recent counterpart was on average 10 percent heavier. Looking at physical
activity data, only available between 1988 and 2006, those born later were five
percent heavier even if they exercised just as much people two decades
earlier.
“Weight management is actually much more
complex than just ‘energy in’ versus ‘energy out,’” says Kuk. “That’s similar
to saying your investment account balance is simply your deposits subtracting
your withdrawals and not accounting for all the other things that affect your
balance like stock market fluctuations, bank fees or currency exchange rates.”
In the case of weight, the
“other things” affecting our balance might have to do with our environment
— both outside our bodies and within them. Kuk says that the world we live in
today makes it harder to manage our weight than it was for people a generation
ago.
She feels that the habits and modern
lifestyles certainly have strong impact.“We’re sleeping less than we used to;
according to Gallup,in 2013, 40 percent
of Americans got less than seven hours of sleep per night. And a Carnegie Melon
survey in 2012 found that Americans were roughly 20 percent more stressed than
a quarter of a century before.
Another factor is exposure to
certain kinds of chemicals that affect endocrine system & metabolic
processes. Plastic packaging, pesticides and substances (mostly synthetic
toxins that tend to bioaccumulate through the food web) may be
impacting the way our bodies process food and store fat.
Growing use of prescription drugs has
also a role to play. A CDC report indicates that spending on prescription drugs
doubled between 1999 and 2008. Among the adults, antidepressants were the most
commonly used drug — large number of studies have linked antidepressants to
weight gain. Allergy medications, steroids and pain medications also affect weight.
The tiniest and perhaps least
intuitive factor is our “microbiomes,” the brew of tiny organisms that
live in our guts and play a role in processing food. Changes in our diets — we
each ate roughly 20 pounds more meat per year in 2000 than we did 30
years earlier, and we’re consuming far more artificial sweeteners — known to
affect the gut bacteria, which in turn have been proven to affect how we
extract energy from our diets. And if an individual is obese, their microbiome
might actually be making weight loss harder.
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