Влияние космической погоды на человека в космосе и на Земле. Труды Международной конференции. Том 2

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Bone up daily. Get your daily calcium by popping a tab, chugging milk or eating yoghurt. It’ll keep your bones strong. Remember that your bone density declines after the age of 30.
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Ask yourself: What bad habits do you want to break? Next