#819: Rhonda Patrick, Ph.D. — Protocols for Fasting, Lowering Dementia Risk, Reversing Heart Aging, Using Sauna for Longevity (Hotter is Not Better), and a Few Supplements That Might Actually Matter

What It Covers

Dr. Rhonda Patrick discusses evidence-based protocols for fasting, dementia prevention, heart aging reversal, sauna use, and supplement strategies. She shares specific interventions used with her parents who have Parkinson's disease and cognitive decline, backed by recent clinical trials.

Key Questions Answered

• •Multivitamin for Cognitive Aging: Centrum Silver taken daily for two years reduced global cognitive aging by two years and episodic memory aging by 4.8 years in adults 65+ without neurodegenerative disease. This represents one of the easiest interventions for older adults concerned about cognitive decline.
• •VO2 Max Training Protocol: The Norwegian 4x4 protocol (four minutes maximum sustainable effort, three minutes recovery, repeated four times) most effectively improves VO2 max. A two-year study showed this training reversed heart aging by 20 years in sedentary 50-year-olds, making their hearts structurally comparable to 30-year-olds.
• •Sauna Frequency and Dementia Risk: Using sauna 4-7 times weekly at 174°F for 20 minutes associates with 66% lower dementia risk and 65% lower Alzheimer's risk. However, temperatures above 190°F may increase risk rather than provide benefits, suggesting hotter is not better for brain health.
• •Creatine Dosing for Brain Benefits: While 5 grams daily saturates muscle stores, emerging evidence suggests 10-20 grams may be needed for cognitive benefits since muscles consume creatine preferentially. Higher doses show promise for sleep deprivation recovery and neuroprotection, particularly for those with APOE4 alleles.
• •Sulforaphane for Neuroprotection: Avmacol brand sulforaphane (two capsules daily of advanced formula) activates NRF2 pathways, increasing glutathione production in brain and plasma. Patrick's mother reported tremor reduction within 1-2 weeks, and it detoxifies benzene by 60% within 24 hours in polluted environments.