Oxygen is needed for everything our bodies do. We need oxygen to make:
Bad News! What Would Happen Without Oxygen?
Without oxygen, none of that stuff would happen.
AND YOU WOULD DIE.
(So we need our heart to push blood, and the oxygen in it, around our body.)
Oxygen in the Blood
Of course, heart failure doesn’t make your heart pump zero blood and zero oxygen.
Your heart doesn’t stop beating.
CHF makes your heart beat weakly so it pumps less blood with each beat…
…so places around your body get less oxygen than they need.
And you feel tired and run down.