All the moisturizer in the world couldn’t hold up to what Mother Nature has been doling out these past few weeks. Besides treating your skin more gently — you’re taking shorter showers, using mild soaps and patting yourself dry instead of rubbing, right? — you could be doing more to keep it looking and feeling healthy. Drinking plenty of water is key since, between the harsh wind and moisture-sapping central heating, your skin is grappling with the extremes of both the indoors and outdoors. And cut out as much sugar as possible; besides making your metabolism yo-yo, it’s aging you faster by interfering with collagen production. So keep green tea handy — besides keeping you hydrated, it’s packed with catechins that boost blood flow — and add these foods to your diet to keep your cheeks rosy.