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Value Initiation Instead of Endurance
"As you exercise day after day," Baumeister says, "it gradually gets easier to sustain the practice." Making yourself work out even a few minutes one day means you're more likely to do it again the next day, and the next. "Starting a habit is the most difficult part," says Segerstrom, but the initial frustrations are temporary. "Once established, habits are near-automatic."
As a reminder, always consult your doctor for medical advice and treatment before starting any program.