General Knowledge · 2
How long do red blood cells typically live in the human body?
Answer
120 days
Red blood cells (erythrocytes) typically live for about 120 days in the human body before being broken down by the spleen and liver. The bone marrow continuously produces new red blood cells at an incredible rate—approximately 2 million per second—to replace the ones that die. This constant regeneration is essential for maintaining oxygen transport throughout the body.
💡 Did you know?
Red blood cells live 120 days; your body produces 2 million new ones every second to replace dead cells—that's 180 billion per day.
Other options people guess
- 10 days
- 30 days
- 200 days
Topics
- biology
- human body
- health
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