6 种食物会加速皮肤和牙齿的衰老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 glycaton 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 mor...
