考研英语阅读篇章: 6种饮食方式加速衰老

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    考研英语阅读篇章:6种饮食方式加速衰老
    　　Sweets
    Sugar overload may kick-start a process called glycation(糖化).
    The theory: When you eat more sugar than your cells can process, the excess
sugar molecules combine with proteins, creating "advanced glycation end
products" (appropriately referred to as "AGES"), explains Dr. Ostad. Ultimately,
AGES may damage your skin's collagen(胶原) (the protein that keeps skin firm and
youthful).
    Unsurprisingly, too much sweet stuff is also bad for your smile. "Sugar
sticks to your teeth, encouraging bacteria, decay, and discoloration," says
Brian Kantor, a cosmetic dentist who practices in New York City. If you treat
yourself to something sweet, swish water around your mouth afterward to remove
any buildup.
    　　Alcohol
    A healthy liver means healthy skin.
    "When your liver is functioning well, toxins that could potentially affect
the skin are expelled naturally through your body," says Dr. Ostad. "But if
toxins build up in your liver, and aren't broken down properly, your skin can
develop a variety of issues, like acne(痤疮),sallowness(灰黄), and wrinkles."
    Drinking can also trigger rosacea outbreaks.
    To top it off, alcohol is dehydrating and bad for your sleep, which was
associated with accelerated aging in a Case Western Reserve University
study.
    "Inadequate sleep is linked to wrinkles, uneven pigmentation, and reduced
skin elasticity," says Dr. Ostad.
    White wine
    White wine falls into its own category because of its surprising dental
damage. While a glass of red will give you instant "wine mouth," the acid in
white wine damages your enamel and makes your teeth more prone to longer-lasting
stains. So if you always end your day with a glass of chardonnay, your teeth may
be more vulnerable to those coffee stains the next morning.
    Here's what not to do: brush your teeth immediately after drinking (same
goes for any acidic drink). Brushing already acidic teeth can further the
erosion of your enamel(搪瓷，珐琅).
    "You need to give your teeth time to remineralize after being bathed in an
acidic beverage," says Maureen McAndrew, clinical professor at the New York
University School of Dentistry. "I'd wait an hour after drinking before lifting
a toothbrush."
    　　Charred meat
    That black char on your burger? It may contain pro-inflammatory
hydrocarbons, which could present a problem since inflammation breaks down the
collagen in your skin, explains Dr. Ostad.
    You don't necessarily need to banish BBQ from your vocab, but at least make
sure you scrape off the black stuff, and clean the grill afterward so you don't
contaminate your next meal.
    Salty foods
    You might not cook with salt, but that doesn't guarantee your intake is
low.
    "Many canned foods are preserved with sodium, which can make you retain
water and cause a 'puffy' look," says Ranella Hirsch, MD, former president of
the American Society of Cosmetic Dermatology & Aesthetic Surgery, and
dermatologist practicing in Massachusetts.
    If you need a quick fix, combat fluid retention with a moisturizer that
contains caffeine (it's known for reducing puffiness when applied
topically).
    Processed meats
    Think: Deli meat, sausage, and bacon.
    "Many of these meats have sulfites and other preservatives, which can
trigger inflammation in the skin, and accelerate the appearance of aging," says
Dr. Ostad. They also tend to be high in salt, which can make you look puffy.
(Not to mention, processed red meats have been linked to heart disease.)
    Try swapping the deli meat on your sandwich for chicken or turkey. If you
can't say goodbye for good, use less meat, and load up on veggies.