Evidence-based brain health strategies
Vascular risk factor management is the strongest modifiable pillar of brain health. Hypertension is the single most important risk factor for both stroke and vascular cognitive impairment; blood pressure control below 130/80 mmHg when tolerated reduces both risks. Diabetes management, cholesterol optimization (statin therapy where indicated), smoking cessation and obesity reduction contribute to vascular brain health. Sleep-disordered breathing (obstructive sleep apnoea) worsens vascular risk and cognitive function — screening and treatment where indicated are essential.
Physical activity has robust evidence for cognitive preservation. Regular aerobic exercise (at least 150 minutes of moderate-intensity activity per week) improves cardiovascular fitness, reduces blood pressure, aids weight management and promotes hippocampal neuroplasticity — the brain region critical for memory. The Mediterranean diet (rich in fruits, vegetables, whole grains, olive oil, fish and nuts) has the strongest dietary evidence for vascular and cognitive protection. Social engagement, cognitive stimulation and stress management contribute to cognitive reserve — the brain's resilience to age-related or pathological change.
- Blood pressure control — target below 130/80 mmHg when tolerated
- Regular aerobic exercise — at least 150 minutes per week
- Mediterranean diet — fruits, vegetables, olive oil, fish, whole grains
- Smoking cessation — non-negotiable for vascular brain health
- Sleep apnoea screening — worsens vascular risk and cognition
Related: Cognitive Care → · Dr. Jitendra Knowledge Hub → · ICHD-3 Topic →
When to seek cognitive assessment
Prevention does not replace assessment. Individuals experiencing progressive forgetfulness, difficulty managing medications or finances, getting lost in familiar areas, or behavioral changes should seek evaluation rather than attributing symptoms solely to aging. Many reversible factors — depression, thyroid disease, vitamin B12 deficiency, medication effects and sleep disturbance — can impair cognition and must be excluded. A family member who notices changes should attend the appointment for informant history.
At Kathmandu Neurology Clinic, cognitive assessment includes patient plus informant history, cognitive screening (MoCA or MMSE), medication review, and targeted investigations only when findings would change management. For individuals without symptoms, a wellness consultation can discuss personalized risk factor optimization — reviewing blood pressure, glucose, cholesterol, sleep quality, exercise habits and cognitive engagement. The goal is practical, sustainable strategies rather than generic advice.
- Progressive forgetfulness or difficulty managing daily tasks — seek evaluation
- Reversible contributors — depression, thyroid, B12, medications, sleep
- Wellness consultation — personalized risk factor optimization
- MoCA/MMSE screening — brief cognitive assessment when indicated