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How Hot Is Too Hot for the Human Body?
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Heat waves are becoming supercharged as the climate changes. How hot is too hot for normal daily activity, even for young, healthy adults?
What Is the Arctic Circle? 9 Stone-cold Facts About the Region
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The Arctic Circle is a region marked by frigid temperatures, strange sunlight and glaciers galore. And for hundreds of thousands of people, it's also home sweet home.
Why is carbon monoxide poisonous?
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I have heard that carbon monoxide is extremely poisonous. Can you explain why?
August 20 Birthday Astrology
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A Leo born August 20, symbolized by the Lion, is sensitive, sweet, and has a talent for making friends. Learn about August 20 birthday astrology.
September 28 Birthday Astrology
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A Libra born September 28 is symbolized by the Scales and has an eccentric and artistic nature. Learn about September 28 birthday astrology.
February 27 Birthday Astrology
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A Pisces born on February 27 is symbolized by the Fish and has great empathy for others. Learn about February 27 birthday astrology.
March 12 Birthday Astrology
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A Pisces born on March 12 is symbolized by the Fish and has a creative, graceful personality. Learn about March 12 birthday astrology.
March 15 Birthday Astrology
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A Pisces born on March 15 is symbolized by the Fish, has an idealistic nature, and is put off by negativity. Learn about March 15 birthday astrology.
July 14 Birthday Astrology
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A Cancer born on July 14 is symbolized by the Crab and is quick-witted and highly verbal. Learn more about July 14 birthday astrology.
Tai Chi
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Tai chi is an ancient martial art that has be refined over centuries across many cultures and philosophies. Learn about tai chi and its origins.