Focus at Four: Which is most important--diet, sleep, or exercise?

Keeping up with a healthy lifestyle can be difficult. It can be even more difficult if you're focusing on the wrong goal.

Medical professionals at Texas A&M Health Science Center are seeking to answer the age-old question: which is most important to your health--diet, sleep, or exercise?

David Earnest, Ph.D. is a professor in the Texas A&M College of Medicine. He joined First News at Four to break down how each of those three health factors affect each other.

While the ideal situation is to get plenty of sleep, regular exercise, and a healthful diet, experts say there is a balance that might help you focus your energy.

For Earnest's full comments, see the video player above. For more information from the Health Science Center, see the Related Links.