You may not appreciate getting pranked with a whoopee cushion or hot sauce in your food on April Fool’s Day, but a good laugh may be just what the doctor ordered.

April is National Stress Awareness Month, and a report from the Society for Vascular Surgery shows kicking it off with laughter can be very beneficial for your vascular health.

“Laughter increases blood flow and improves the function of blood vessels,” Dr. Vivienne Halpern, from the Society for Vascular Surgery said in a press release. “Reducing stress is especially beneficial for persons who have hypertension (high blood pressure).”

Stress and high blood pressure can have detrimental effects on the body. The combination of pressure at work, financial issues, and personal or relationship problems can all raise blood pressure and cause hypertension, and even cardiovascular disease.

Studies have shown that a good laugh on a regular basis can even help prevent you from getting sick.

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