看了英文原文，发现我的理解不对，英文很清楚

According to the study, the average 55-year-old’s risk of dementia during their lifetime is 42%, but the risk was not the same at every age. The brunt of it occurred after a person’s 85th birthday. Between ages 55 and 75, the average person’s risk of developing dementia was 4%, according to the study. By the time someone turned 85, their risk was about 20%. Risk didn’t reach 42% until a person’s 95th birthday.

所有跟帖： 

• 在55-75岁之间，一个人患失智症的风险总共只有4%，不是每年增加4% -dudaan- ♂ (79 bytes) () 01/13/2025 postreply 13:03:16

• 到了95岁，风险增加到42%。若真能活到95岁仍有58%几率不痴呆呐，知足吧：） -pickshell- ♀ (0 bytes) () 01/13/2025 postreply 13:27:34

• 这里有一个重要假定是到2060年人的预期寿命会比现在长很多 -dudaan- ♂ (0 bytes) () 01/13/2025 postreply 13:06:06