5 Mistakes Adults Make in Flexibility Training 

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A woman with curly hair stretching with her arms extended upward against a white wall.
Woman with long curly hair in a forward bend yoga pose, reaching her arms out in front of her against a white background.
A woman with long curly hair performs a backbend stretch, reaching forward with her arms and holding her foot, while wearing a white sock on one foot against a plain white background.

Why adult flexibility training requires a smarter approach.