Is Thor Actor Chris Hemsworth Taking a Hiatus Due to His High Risk for Alzheimer’s Disease?
In late 2022, Chris Hemsworth — best known for playing Thor in the Marvel Cinematic Universe — revealed that genetic testing had shown he carries two copies of the APOE4 gene variant, giving him an approximately 8–10 times higher risk of developing Alzheimer’s disease compared to the general population. This revelation prompted him to take a break from acting to spend time with his family and focus on his health.
What Is the APOE4 Gene?
APOE (Apolipoprotein E) is a gene that plays a key role in fat metabolism and brain health. It comes in three common variants: APOE2, APOE3, and APOE4. Carrying one copy of APOE4 increases Alzheimer’s risk by approximately 3–4 times; carrying two copies (as Hemsworth does) increases risk by approximately 8–10 times. However, having APOE4 does not mean a person will definitely develop Alzheimer’s — it is a risk factor, not a certainty.
What Can You Do If You Carry APOE4?
Lifestyle interventions — regular aerobic exercise, a Mediterranean-style diet, quality sleep, stress management, and social engagement are all associated with reduced Alzheimer’s risk even in APOE4 carriers
Cognitive engagement — lifelong learning, mentally stimulating activities, and social connection support brain health
Medical surveillance — regular check-ups and early monitoring allow for earlier intervention if cognitive changes are detected
Genetic counselling — a certified genetic counsellor can help you understand your results, their implications for family members, and the best preventive strategies for your situation
Should You Get Tested?
Knowing your APOE status — and your broader genetic risk profile for neurological conditions — is a powerful tool for prevention. Like Hemsworth, many people find that knowing their genetic risk motivates them to make positive lifestyle changes and take proactive steps for their long-term health.
Know Your Genetic Risk for Alzheimer’s and Neurological Conditions
Genomepatri by MapmyGenome covers Alzheimer’s disease risk, Parkinson’s disease risk, and 100+ other health conditions — with certified genetic counselling to help you understand your results and take proactive steps for your brain health.
