<span>Vitamin D is the only vitamin the body can produce naturally.
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They are full of sodium, but they very little amount of nutrients that is good for you. This doesn't mean they are healthy because they actually aren't. But, they are still really good.
Answer:
The answer is age.
Explanation:
So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.At a 50 percent exertion level, your target would be 50 percent of that maximum, or 85 beats per minute.
