What outcome can result from a lack of physical activity over time?

A lack of physical activity over time can lead to decreased muscle strength. Regular exercise is crucial for maintaining and building muscle mass and strength. Without consistent physical activity, the body can experience muscle atrophy, which is the gradual decrease in muscle size and strength. This decline in muscle strength not only affects daily physical functions but can also lead to an increased risk of injury, impaired coordination, and overall decreased physical performance.

In contrast, improved bone density typically results from regular weight-bearing exercise, which stimulates bone formation and strength. Increased cardiovascular fitness is achieved through regular aerobic activities, which also would be lacking in a sedentary lifestyle. Similarly, flexibility is enhanced through consistent stretching and movement, which would not occur with a lack of physical activity. The consequences of inactivity highlight the importance of including exercise as a vital component of a healthy lifestyle.