How can deep abdominal breathing help promote quality sleep?

Studies show that relaxation techniques such as deep abdominal breathing help to induce distal vasodilatation, a warming of the hands and feet, which is followed by sleep. While lying in bed, use this sleep enhancer to slow the heart rate and calm the body. When awoken during the night, immediately start deep abdominal breathing to calm down and put the mind and body back in sleep mode.

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