Multiple choice general knowledge science & technology

How many watts of power your grain generates when you’re awake (that’s enough to turn on a light bulb!)?

  1. 5-10

  2. 15-20

  3. 10-23

  4. 25-30
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The human brain generates approximately 10-23 watts of power when awake, which is comparable to a small dim light bulb. This power comes from glucose metabolism in brain cells. During sleep, power consumption decreases significantly. The brain's high energy use relative to its size is why it requires constant fuel supply.

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