Final answer:
High-impact aerobics classes are not a preferable method of weight loss for all ages.
Step-by-step explanation:
The statement that high-impact aerobics classes are a preferable method of weight loss for all ages is False. While high-impact aerobics can be effective for weight loss, it may not be suitable or preferable for all ages. Aerobic exercises, such as cycling, walking, and running, are known to increase muscular endurance and cardiovascular health. However, the intensity and impact of the exercise should be considered based on individual capabilities and health conditions.