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Changing your habits for better health: the four stages, the pros and cons, the roadblocks, and keeping it up

For anyone who wants to eat better, move more or change another health habit: who keeps meaning to start, has just started, or has slipped. It passes on, by name, what the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK, part of the NIH) says: the four stages of change and how to tell which one you are in, the pros and cons of healthy eating and physical activity, the common roadblocks (no time, the cost, doing it alone, not liking exercise or healthy food) and NIDDK’s solutions, a plan with small goals, tracking your progress, rewards that are not food, setbacks, and keeping it up. It builds the words to say to your health care professional, and prints a card. It is about habits, not about the size of your body.

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This page and its wording were written with AI (Claude) for Scarlet Beast (our AI policy). No doctor, nurse or dietitian has reviewed it. The facts were read on October 19, 2026 on NIDDK’s (NIH) page Changing Your Habits for Better Health (last reviewed November 2020) and its Spanish page Cómo cambiar sus hábitos para tener una mejor salud (April 2019), which say the same. The numbers (four stages; the last 6 months or so; more than 6 months; 10 minutes, three times a week; one shopping day and one potluck a week; a cup or two; 5 days a week; twice a week) are NIDDK’s, and we add none. Ours: “if you believe it is an emergency, call 911” and 988 (NIDDK names neither on this page); that this page is about habits, not the size of your body; that food is not a prize or a punishment; the pointer to our eating disorders page; asking your health care professional which activity is safe for you; that not having enough food is not a habit to fix; the questions to ask; the links to our other pages; and the order of the steps. What we left out: NIDDK’s line that new habits may help you “look better”; the NIH Body Weight Planner (a weight-loss planning tool); the section on clinical trials; and NIDDK’s links to other sites. NIDDK’s lists of pros keep “maintain a healthy weight” as one item among many. Nothing you tick or type here is saved or sent.