The best understood risk gene, with the largest effect on Alzheimer’s risk is called APOE. Everyone carries two copies of the gene, one inherited from each parent. There are three different versions ...

We've all experienced it: you're in the middle of a conversation, searching for a word, a name, or a title, and… nothing. You know you know it—you can almost feel it—but it just won't come. This ...

Imagine seeing a furry, four-legged animal that meows. Mentally, you know what it is, but the word "cat" is stuck on the tip ...