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Don't miss out on the opportunity to enrich your mind and expand your horizons. Claim your 30% discount now and join us in celebrating the wonder of science this Memorial Day + access endless fascinating summer reads with a subscription. Subscribe Explore Our Holiday Weekend Reads Do Hot Summer Temperatures Weaken the Immune System? Heat seems to trigger a sweep of changes in immune system molecules, although researchers disagree on what they might mean. Read More   What Are the Best and Safest Sunscreens? What dermatologists say about sun sensitivity, cancer risk and the products they use for sun protection. Read More   Do Stars Outnumber the Sands of Earth's Beaches? Figuring out whether there are more stars in the universe than sand grains on Earth's seashores requires math—and imagination. Read More   Some People Really Are Mosquito Magnets, and They're Stuck That Way Certain compounds in our skin determine how much we attract mosquitoes, new research suggests—and those compounds don't change much over time. Read More   How to Cool Down Fast in Summer Heat Your body has a secret cooling method, and scientists explain how to use it. Listen Now

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