Imagine you're a researcher studying how sleep affects mood. To explore the connection, you would look at two key "variables": sleep (how much someone gets) and mood (how happy or irritable they feel) ...

And other studies will examine how diet affects autism, adults who have it and how to improve care for those who have been diagnosed. Last month, the National Institutes of Health awarded 13 ...

Groundbreaking new tests reveal patterns in our immune systems that can signal underlying disease and tell us how well we ...