More sitting down means a higher chance of getting cancer, according to new research at the National Cancer Institute.
Epidemiologist Charles Matthews is updating the organization's recommendations for exercise in light of the recent findings.
At a recent conference, Matthews said that just one hour of sitting increases a person's risk for not one, but nine types of cancer.
The solution, he claims, is to get off the couch.
"This is where moderate activity like a brisk walk or things around the house come in," said Matthews. "Anything that is not sitting is good."
The American Cancer Society says adults should get 150 minutes of moderate exercise a week and 75 minutes of intense workouts.
But Dr. Matthews says even with the exercise, sitting still puts you at a higher risk.