Blood Sugar & Brain Health

Balance your blood sugar. Protect your brain.

Our brain relies on a steady supply of glucose to function, but too much sugar, especially when it’s poorly regulated, can cause serious and lasting damage.

Diabetes and pre-diabetes increase inflammation, damage blood vessels, and interfere with brain signaling. Over time, this raises the risk for memory problems, cognitive decline, and dementia.

The good news? Stabilizing our blood sugar supports both our brain &body – and we can start today!

Brain Benefits of Healthy Blood Sugar

• Reduces inflammation and oxidative stress in the brain

• Protects small blood vessels that supply oxygen to brain cells

• Improves mood, energy, and mental clarity

• Lowers risk of Alzheimer’s and vascular dementia

• Supports insulin signaling, which helps memory and learning

What the Science Says

• Type 2 diabetes can increase risk of developing dementia by 50% – 100%, depending on severity and control.

• Even pre-diabetes is linked to faster cognitive decline and reduced brain volume, particularly in memory-related regions.

• Insulin resistance affects how brain cells use energy, making it harder to think clearly and remember.

How do diabetes and pre-diabetes affect our brains?
Visit our Resources & Studies page and click on Blood Sugar & Brain Health for in depth research on glucose levels and their relationship to sharper thinking and long-term dementia risk.

Take the Next Step

Healthy Brain Plan helps you assess your blood sugar habits and provides clear steps to support both brain and metabolic health.