How many neurons are in the human brain?
The human brain contains about 86 billion neurons.
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- When was the first human heart transplant?
“Surgeon Christiaan Barnard performed the first human heart transplant in South Africa in 1967.”
Reference: Encyclopaedia Britannica
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How many times does the heart beat in a lifetime?
The heart beats about 100,000 times a day and more than 2.5 billion times over an average lifetime.
When to not have grapefruit
If you've had an organ transplant, it is best to avoid eating grapefruit or drinking grapefruit juice (it interferes with the anti-rejection drugs in your blood).