Both sugar and oxygen can be used to track energy consumption, but oxygen is more accessible. Human brain energy consumption cannot be measured this way, but we can monitor oxygen levels, since increased brain activity requires more oxygen. Finally, we have our emotions, even when subtle (like feelings of serenity or uncertainty), which are products of brain activity. However, processing visual information reduces activity in auditory areas, so we spend less energy processing sounds [9]. We shouldn’t worry that too much mental activity will drain our brain energy.

Source: Forbes April 27, 2023 17:42 UTC