Applied Evidence

Inadequate sleep & obesity: Breaking the vicious cycle

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In contrast, those with alcohol or cannabis use disorder tend to have more sleep-onset insomnia.40 Not only do illicit drugs interrupt sleep, but daily tobacco use also has been correlated with increased insomnia and shorter sleep duration since nicotine is a stimulant.41

Insomnia is commonly treated with sedative antidepressants and hypnotics—eg, mirtazapine and olanzapine—that contribute to weight gain.42 In addition, other common pharmaceuticals used for sleep disorders, such as diphenhydramine, have sedative properties and tend to lead to weight gain.43 Because so many medications affect sleep and weight, carefully review patients’ medication lists and switch offending agents to weight-neutral drugs if possible.

Treatment and tools to improve sleep in patients with obesity

Given the strong correlation between obesity and sleep disorders, validated screening tools should be used to assess sleep quality, including onset and potential symptoms associated with poor sleep (TABLE 144). For weight management to succeed in patients with obesity, it is crucial to address sleep in addition to nutrition and physical activity.17,45

Accuracy of questionnaires for assessing obstructive sleep apnea-hypopnea syndrome (OSAHS)

It falls upon the clinician and patient to weigh the benefits and burdens of the pharmacologic treatments of insomnia.

Physical activity has many benefits to overall health, especially for chronic diseases such as type 2 diabetes and hypertension. The Centers for Disease Control and Prevention recommends at least 150 minutes of ­moderate-intensity aerobic activity or 75 minutes of vigorous-intensity aerobic exercise per week in addition to muscle-strengthening activities 2 or more days per week.46 However, approximately 300 minutes of moderate-intensity activity per week is suggested for successful weight loss with exercise alone.47

Physical activity and diet in combination are vital, but diet restriction has a more substantial effect on weight loss than physical activity alone.48 Still, physical activity is essential in helping maintain and prevent weight regain.

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