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Sleeping In Your Makeup
We get it — sometimes you're just so sleepy that washing off your makeup can seem like the ultimate chore. But snoozing in your makeup has both short- and long-term effects. "Makeup should be removed every night to allow skin to repair and regenerate overnight," says Dr. Weiser. "Leaving it on can lead to clogged pores, oil buildup, and bacterial growth, causing breakouts."
Those zits can start brewing as early as the morning after — especially if you fall asleep in heavy makeup. But your skin will also immediately look uneven and dull, even after you finally wash off the makeup.
I have gone on my fair share of late-night McDonald's runs. (Double cheeseburger with Big Mac sauce, please.) And while the occasional burger won't do too much harm, over time your face will start to look sallow, thanks to an avalanche of chemical processes.
"Exogenous glycation happens when the sugars in food react with fats or proteins exposed to high temperatures, such as those incurred during the cooking process of fast food," Dr. Weiser explains. "Glycation is the first component in a set of reactions that forms advanced glycation end-products, or AGEs." Those AGEs trigger inflammation, which causes collagen breakdown, skin laxity, fine lines, and more. So, basically, the way fast food is prepared leads to the creation of nasty, inflammation-causing chemicals.
You won't see this after a single juicy bite — effects compound the more you nosh. But just like your nutritionist, your derm will likely steer you away from too many Whoppers or In-N-Out for the sake of your skin. Damn!
Traveling On An Airplane
Anyone who has ever stepped foot on a long-haul flight knows the immediate reaction your skin has to that craptastic air. "Airplane air is recycled, pressurised, and without humidity," says Dr. Weiser. "Therefore, it causes skin dryness and irritation." But what you may not realise is that parched skin can lead to other problems. "That excessive dryness triggers oil-gland productivity, resulting in breakouts," she says. These can crop up two to three days after air travel, which is why you might see a zit make an unwelcome appearance during your vacation.
The easiest way to combat all of this is to ensure you stay nice and hydrated. Sip water during your flight, apply a moisturising serum and cream before you board, and use a mild facial scrub once you land to remove dead skin cells. In-flight mists with hydrating sprays are also a refreshing option.
Funnily enough, cold air and airplane air aren't all that different — they both lack humidity, and your skin loves it some humidity. But chilly temps are actually worse than airplane air. "Cold air is so depleted of moisture that it pulls it from the skin surface, causing dryness and irritation," says Dr. Weiser. If your skin is exposed to cold air for long periods of time, this can actually lead to eczema.
While redness and dryness are immediate (especially after a brutally cold or windy day), more serious side effects are cumulative. The best way to combat ice-climber face? Cover up as much as possible, and ensure your skin is getting enough hydration. Plug in your humidifier, and double down on moisturiser.
After our last two slides, you're probably thinking that humidity is like manna from heaven for your complexion. Well, you know what they say about too much of a good thing. "Humidity is excessive moisture, and it can trigger excessive oil-gland production, leading to clogged pores and acne breakouts," Dr. Weiser says. Things get especially icky when that humidity triggers sweat, which can lead to epic irritation. These sorts of breakouts and rashes are quick to flare up, but easy to soothe. Just make sure you're washing and exfoliating well.