The Thor star learned he had two copies of the ApoE4 gene, which he inherited from both of his parents, while undergoing testing as part of his Disney+ documentary series, Limitless.
He told Vanity Fair that the tests confirmed his “greatest fear” and that he would take “preventive measures”.
While the presence of the gene does not make it certain that someone would develop Alzheimer’s, it is considered a strong indicator that a person could get Alzheimer’s.
About 3% of the population carry two copies of the gene.
Alzheimer’s is the most common form of dementia and can cause memory problems, confusion, and communication difficulties.
The 39-year-old was initially briefed on his diagnosis over the air and producers gave him the option not to discuss it on the show.
But he decided to share the news to “motivate” people to take better care of themselves and to highlight the steps available to fight Alzheimer’s.
The actor added, “It’s not like I got my resignation.
“If you look at Alzheimer’s prevention, the benefit of preventive measures is that they affect the rest of your life.
“It’s all about sleep management, stress management, diet, exercise, fitness. It’s all the same tools that need to be applied consistently.”
He will soon be starring in George Miller’s upcoming Mad Max sequel Furiosa, which wrapped filming earlier this month.
The 39-year-old said he would be taking a break from acting after completing the Limitless promotional tour, along with his other contracted work.
He will return to Byron Bay, Australia to spend time with his partner, actress Elsa Pataky, and their three children.
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