You may be 40 years old, but could your brain already be showing signs of accelerated aging? New research involving more than 18,000 people suggests that the answer may depend on much more than genetics or your date of birth.

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2. High Blood Pressure Can Affect Your Brain Long Before Symptoms Appear

High blood pressure is often called a silent condition because it may cause no noticeable symptoms for years.

Yet uncontrolled hypertension can gradually damage blood vessels throughout the body, including those supplying the brain.

The brain depends on a continuous supply of oxygen and nutrients.

Over time, vascular damage may contribute to small-vessel disease, strokes, and cognitive impairment.

High blood pressure in midlife is an established modifiable risk factor for dementia later in life.

This is one reason cardiovascular health and brain health are so