Does Your Heart Stop When You Sneeze?
No, your heart does not stop when you sneeze. When you sneeze, the intrathoracic pressure in your body momentarily increases, which decreases the blood…
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Lungs
How Does Your Body Make Blood?
The blood that our hearts pump through our bodies is composed of cells and plasma. The cells include red blood cells, white blood cel
Why Do Animals Need Oxygen?
Why Do Animals Need Oxygen? We must have oxygen to live. Every living animal cell needs oxygen for its vital metabolic activities (the proce
Why Can You Not Breathe When You Swallow?
Why Can You Not Breathe When You Swallow? You are not able to breathe when you swallow because your respiratory (breathing) system is closel
When Was the Stethoscope Invented?
When Was the Stethoscope Invented? The stethoscope was invented by a French doctor, René Théophile Hyacinthe Laënnec, in 1816. It consist