The Slimy Secret To Youthful Skin Our bodies produce less collagen as we age, meaning wrinkles, thinner skin, and dryness. Unfortunately, increasing our collagen levels is no easy feat—at least, for now. New research suggests that sea cucumbers, leathery animals lurking on the ocean floor, boast a peptide that might one day lead to new anti-aging skin treatments for humans. In the meantime, check out our rundown of the best collagen-boosting beauty products. It’s the leading cause of death across the country, but heart disease might one day be much easier to prevent. Experts have made key findings that could yield a vaccine to thwart atherosclerosis, or the buildup of plaque in arteries, by targeting cells that prevent the body from clearing plaque away. A vaccine is still years away, but you can reduce your risk of heart disease now—find out how with advice from top experts.  The New Year’s Resolution You’ll Love Sticking To Year after year, you resolve to exercise more. Conquer clutter. Save money. And while these aren’t bad resolutions, there’s an even better one you could be making: Self-indulge. New research shows that trips to the spa can significantly enhance your physical and mental health. Of course, a weekly spa fix isn’t exactly affordable, so we’ve come up with soothing ways to unwind without breaking the bank. Time To Toss The Red Lipstick? In a new survey, the majority of polled women stated that ladies should nix high heels, glitter, tight clothes, and fake nails by the time they’re 59—and only 38% of respondents approved of wearing red lipstick at that age. Our take? Puh-leeze. Rock whatever look you want, no matter how many candles are on the birthday cake. Not sure how to pull off a sassy manicure? Our advice has got you covered. Follow her on Twitter: @katiedrumm Send news tips and positive vibes to: Katie.Drummond@rodale.com