I’m unhealthy in excess but needed in small amounts. What am I?, I keep you full longer. What am I?, I run but never walk, and I have a mouth but never talk. What am I?, I protect your head but am not a helmet. What am I ?, I’m taken when you’re sick but never taste good. What am I?, I beat all day but never get tired. What am I?, I help you think and remember. What am I?, I carry oxygen around your body. What am I?, I help you smell flowers. What am I?, I keep your hands clean. What am I?, I help you see the world. What am I?, I build strength without lifting weights. What am I?, I’m clear, tasteless, and vital for life. What am I?, I’m strong when you train me but weak when ignored. What am I?, I’m found in milk and build strong bones. What am I?, I’m whole and better than refined. What am I?, I digest without teeth. What am I?, I help you sleep comfortably. What am I?, I’m invisible, yet without me you cannot live more than minutes. What am I?

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