Deep breathing can do which of the following?

• A. Deep breathing exercises can reduce heart rate, blood pressure, and anxiety, improving relaxation.
• B. Deep breathing increases heart rate.
• C. Deep breathing worsens sleep.
• D. Deep breathing causes dizziness.

Answer: (A)

Deep breathing engages the body's relaxation response. When you breathe slowly and deeply with the diaphragm, the parasympathetic system is activated, which slows the heart rate and relaxes the blood vessels. This lowers both heart rate and blood pressure and reduces feelings of anxiety, helping the body and mind calm down. Because of this, deep breathing promotes relaxation and can improve sleep by easing tension and stress.

In contrast, those other effects don’t align with how deep breathing works. Proper deep breathing doesn’t raise heart rate, and it generally supports better sleep rather than worsens it. Dizziness isn’t a typical outcome when breathing is done calmly and correctly; dizziness can occur if breathing is rushed or hyperventilated, which isn’t the intended technique.