25. Unload one bag at a time.

Unpack the groceries from the car one bag at a time. This little habit will give you two workouts in one. The many trips schlepping back to the car will have you burning calories and lifting, a strength-building activity that can help build and maintain your muscles and bones. Hefty produce weighs more than feathery potato chips, so stock those grocery bags with nutritious apples, oranges, potatoes, and other fruits and vegetables to make your unloading more of a workout.

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Learn more about Boston University's Nutrition Programs.