EVERYDAY SCIENCE

SCIENCE

CIRCULATORY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many times will your heart beat in your lifetime?
A
200 times
B
2, 000 times
C
2 million times
D
2 billion times
Explanation: 

Detailed explanation-1: -If you’re a kid, your heart is about the same size as your fist, and if you’re an adult, it’s about the same size as two fists. Your heart beats about 100, 000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times.

Detailed explanation-2: -As we’ve seen, humans have on average a heart rate of around 60 to 70 beats per minute, give or take. We live roughly 70 or so years, giving us just over 2 billion beats all up. Chickens have a faster heart rate of about 275 beats per minute, and live only 15 years. On balance, they also have about 2 billion beats.

Detailed explanation-3: -For 1 billion heartbeats, the number of days is 1, 000, 000, 000 ÷ 100, 000 = 10, 000. Since there are 365 days in a year, and 10, 000 ÷ 365 is approximately 27.4, it will take about 27.4 years. The billionth beat will be in May 2027.

Detailed explanation-4: -Over the course of a year, your heart would beat about 42, 048, 000 times! If you live to be 80 years old, your heart would have beaten approximately 3, 363, 840, 000 times! That’s over 3 billion heartbeats!

Detailed explanation-5: -In a 70-year lifetime, an average human heart beats more than 2.5 billion times.

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