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In addition to good diet, exercise is a cornerstone to a healthy lifestyle. Even a short walk during your lunch break can do wonders for your physical and mental health. Going to the gym for a resistance workout can increase that benefit even more. There is a broad spectrum of exercises and intensities that can…

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When studying the origin of life on Earth, scientists must rely on past data, physical laws, and models  instead of direct observations. After all, we can’t know for sure what the world was like 4 billion years ago, when the first microscopic life was formed from a mixture of non-living molecules. But knowing about…