Final answer:
Sleep deficiency may cause obesity, lung disease, and cancer.
Step-by-step explanation:
Sleep deficiency can contribute to several health issues, including obesity, lung disease, and cancer. Lack of sleep may lead to weight gain and obesity due to hormonal changes that affect appetite and metabolism. Sleep deprivation can also weaken the immune system, making individuals more susceptible to respiratory infections and lung diseases. Moreover, chronic sleep deprivation has been linked to an increased risk of certain types of cancer, such as breast, prostate, and colorectal cancer.
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