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Behavioral fitness is a key factor that can affect an individual's resilience and readiness to perform military duties

• Being behaviorally unfit may prevent an individual from adequately coping with the stress of military duty.
• Sleep is critical to physical and psychological functioning, and excessive sleep loss can contribute to chronic health conditions, poor mental health, and reduced adaptability to stress.
• Alcohol and drug use disorder can negatively affect behavioral fitness.
• Smoking is associated with the onset of a number of chronic health conditions and can also increase stress and the risk of mood and panic disorders.