Cardiovascular Stress Physiology and Interoceptive Pathways to Brain Aging and Health

Area of Science:

• Cardiovascular Physiology
• Neuroscience
• Gerontology

Background:

• Elevated blood pressure reactivity to psychological stress is linked to hypertension and cardiovascular issues.
• Cardiovascular diseases are known contributors to cerebrovascular disease and dementia.
• The brain-heart axis and interoceptive pathways are implicated in stress response and brain health.

Purpose of the Study:

• To explore the hypothesis that stressor-evoked blood pressure reactivity is a form of cardiovascular stress physiology.
• To investigate the link between this reactivity and cerebrovascular disease and dementia vulnerability.
• To examine the role of interoceptive pathways in the brain-heart axis.

Main Methods:

• This scientific spotlight presents a heuristic hypothesis: the Neurovascular Burden of Stress.
• It focuses on cardiovascular physiology and interoceptive pathways.
• The hypothesis links these to neurovascular pathology.

Main Results:

• Preliminary evidence suggests stressor-evoked blood pressure reactivity is associated with white matter brain lesions.
• This reactivity may also correlate with an increased risk for ischemic strokes.
• Higher rates of vascular determinants of dementia have been observed in relation to this reactivity.

Conclusions:

• Further research is necessary to elucidate the interoceptive pathways involved.
• Understanding how cardiovascular stress physiology contributes to cerebrovascular disease and dementia is crucial.
• Identifying modifiable biopsychosocial factors is essential for promoting healthy brain aging.