Fitness Mistakes to Avoid After 40

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Long-distance running

Die-hard running fans may hate to hear this, but long-distance running becomes less and less advisable as you age. Osteoarthritis is the world's most common joint disease, and although running will not cause osteoarthritis, it sure will exacerbate it by putting enormous stress on the knee, ankle and hip joints and throughout. For a low-impact, full-body cardiovascular workout alternative, we recommend swimming.