I think most grad students would say they experience an unhealthy amount of stress at times (or pretty much all the time). Sometimes we need some serious prodding (or, unfortunately, experiencing a crisis ourselves or witnessing a friend in crisis) to achieve a more healthy lifestyle. The authors make the point that, "A healthy human, in both body and mind, requires sufficient exercise, adequate sleep, appropriate nutrition, meaningful work, nourished relationships, and spiritual connectedness. It is not a sign of weakness or immaturity to admit these needs. In fact, it is part of growing in wisdom."
This article lists ten steps to help grad students achieve balance. They include some points such as limiting distractions from technology, not relying on memory to remember important things but writing them down instead, and ways to get organized and have a comfortable work environment so it is easier to focus.
http://gradresources.org/balancing-life-through-purpose/
Here is another article from the same website (which seems to have a ton of useful information! - I'd recommend all grad students check it out) on time management. This includes such things as spending 80% of your time on your highest-priority tasks and goals, scheduling some flexible time (since some unexpected tasks/responsibilities will always come up), and leaving work areas where you are too easily distracted.
http://gradresources.org/471-2/
I hope these resources can help graduate students, especially at the start of this new year when people may be making resolutions or trying to change some things in their lives. Gradresources.org also has a toll-free, confidential National Grad Crisis Helpline for grad students in crisis (1-800-GRAD-HLP (800-472-3457)) - something I was not aware of until I found one of the articles on the website.
May you have a balanced, productive new year!