Question

which of these health issues may be caused by sleep deficiency?
a. allergies
b. lung disease
c. cancer
d. obesity

Explanation:

Sleep deficiency can disrupt hormonal balance related to appetite - increasing ghrelin (hunger hormone) and decreasing leptin (satiety hormone), leading to increased food intake and potentially obesity. Allergies are mainly immune - system related, lung diseases can be caused by factors like smoking or infections, and cancer has multiple complex causes not directly linked to sleep deficiency like genetics and environmental carcinogens.

Answer:

D. Obesity