Why Does Alcohol Mess With My Sleep?

Some people drink closer to bedtime to help them get to sleep. But that can start a dangerous cycle of more fragmented sleep, followed by heavier drinking. “I do see a lot of people who self-medicate for insomnia with alcohol, which is definitely not a good practice,” said Dr. Sabra Abbott, an assistant professor of…

How Omicron’s Mutations Allow It To Thrive

As nurses and doctors struggle with a record-breaking wave of Omicron cases, evolutionary biologists are engaged in a struggle of their own: figuring out how this world-dominating variant came to be. When the Omicron variant took off in southern Africa in November, scientists were taken aback by its genetic makeup. Whereas earlier variants had differed…