Final answer:
Sleep deficiency can contribute to obesity by disrupting hunger and appetite hormones.
Step-by-step explanation:
Sleep deficiency can contribute to obesity. When you don't get enough sleep, it can disrupt the hormones that regulate hunger and appetite. This can lead to overeating and weight gain, increasing the risk of obesity.
Example: Lack of sleep can increase levels of the hormone ghrelin, which stimulates appetite, and decrease levels of the hormone leptin, which suppresses appetite. This imbalance can cause an increase in food cravings and the consumption of high-calorie foods.
Therefore, the correct answer is D. Obesity.
Learn more about health issues caused by sleep deficiency