Why Yelling is a Waste of Time and Energy

Many parents know yelling is bad habit while mostly they do. Do you think yelling and being firm are the same thing? They trust to be firm, you have to yell. My opinion is that yelling is yelling and that determination is an influence in exploit and requires no noise.
Why Yelling is a Waste of...
Why Yelling is a Waste of Time and Energy by Amber Shafi on Wear and Cheer - Fashion, Lifestyle, Cooking and Celebrities - http://www.wearandcheer.com/why-yelling-is-a-waste-of-time-and-energy/