Superman had kryptonite. Thor has two copies of the gene ApoE4.
One is a fictional material. The other is a real-life genetic characteristic that signals a greater likelihood of developing Alzheimer’s disease.
Chris Hemsworth, who plays the Norse warrior armed with a trademark hammer, recently learned he has copies of the gene, one from his mother and one from his father. The genetic rarity – carried by only 2% to 3% of the population – makes Hemsworth eight to 10 times more likely to develop Alzheimer’s.