Cognitive Decline & Memory Loss

Cognitive decline ranges from mild forgetfulness to significant impairment. It can indicate Alzheimer's disease, other dementias, Parkinson's, or reversible conditions like thyroid disorders, vitamin deficiencies, or medication effects.

Body System: Neurological

Related Diseases

• Alzheimer's Disease — The most common cause of progressive dementia, driven by amyloid-beta plaques and tau tangles.
• Parkinson's Disease — Parkinson's dementia affects up to 80% of patients over the disease course, with Lewy body pathology.

Related Compounds

• Lecanemab
• Donanemab
• Lion's Mane
• Magnesium L-Threonate

Frequently Asked Questions

What is the difference between normal aging and Alzheimer's?

Normal aging involves occasional forgetfulness (misplacing keys). Alzheimer's involves progressive inability to form new memories, disorientation in familiar places, personality changes, and declining ability to perform daily tasks. Biomarker testing (amyloid PET, CSF) can detect Alzheimer's pathology years before symptoms.

Can cognitive decline be reversed?

Some causes are reversible: vitamin B12 deficiency, thyroid disorders, medication effects, depression, sleep apnea. For Alzheimer's, anti-amyloid antibodies (lecanemab, donanemab) can slow progression by 25-35%. Lifestyle interventions (exercise, Mediterranean diet, social engagement) also reduce risk.

What supplements may support brain health?

Lion's mane mushroom promotes NGF production. Magnesium L-threonate uniquely crosses the blood-brain barrier. Omega-3 DHA supports neuronal membrane integrity. NMN/NAD+ precursors address age-related NAD+ decline. These complement, not replace, medical evaluation and treatment.