Questions 164~167 refer to the following information.
 Attaining and keeping a healthy weight involves more than just watching what youeat. It requires a combination of healthy eating, regular physical activity, adequatesleep, and stress management. There are also other factors that may influenceweight gain, such as genetics and hormonal imbalances. Therefore, achieving andmaintaining a healthy weight requires a holistic approach.
One of the most critical aspects of maintaining a healthy weight is healthy eating.This involves consuming a variety of nutrient-dense foods such as fruits, vegetables,whole grains, lean proteins, and healthy fats. It is important to avoid fad diets thatpromise quick results as they often limit your nutritional intake, can be unhealthy, andare typically not sustainable in the long term.
 The amount of physical activity required to maintain a healthy weight may varydepending on your goals. If you want to lose weight, you may need to increase theamount of physical activity you engage in. Walking is a great way to add physicalactivity to your daily routine, and it is a low-impact exercise that is suitable for mostpeople. 
Maintaining a healthy weight has several benefits, including better overall health anda reduced risk of developing chronic conditions as you age. In contrast, obesity isassociated with an increased risk of many serious health problems, such as heartdisease, diabetes, and some types of cancer. Therefore, taking steps to manage yourweight can help improve your quality of life and reduce the risk of developing healthproblems in the future.
【題組】164.According to the information, which of the following is NOT a factor that affects weightgain according to the text?
(A)Genetics.
(B)Hormonal imbalances.
(C) Good sleeping habits.
(D)Healthy eating habits.