Scientists are reporting the first compelling evidence in people that cognitive training can boost levels of a brain chemical that typically declines with age. A 10-week study of people 65 or older ...

Now, if it’s your first time doing them, you’ll be getting a tutorial level that is separate from the daily version I solve here. So these solutions won’t be relevant to you. With that, here are all ...

A Hamas-linked group appeared to name American activist Linda Sarsour, a political ally of the Democratic nominee for New York City mayor, as an expected guest at its upcoming conference in Turkey — ...

When we talk about science, especially biology and medicine, you’ll often hear terms like “hypertonic” and “hypotonic.” They sound a bit technical, right? But really, they just describe how much stuff ...