A new study suggests that age-related changes in the brain start earlier in life than previously thought, and switching diet may slow down the deterioration.
The findings appear in the journal PNAS. The human brain needs over 20% of the body’s energy to function, and it gets this from metabolizing either glucose or ketone bodies.
Hypometabolism occurs when brain cells cannot use glucose as an energy source. The brain is vulnerable to changes in metabolism.
People with Alzheimer’s disease often experience a severe drop in the brain’s glucose metabolic rate, and the extent of this reduction is associated with the severity of their illness.
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