Which of these is not a major lifestyle risk factor for osteoporosis?

• A. Inactivity
• B. Smoking
• C. Regular exercise
• D. Excessive alcohol intake

Answer: (C)

Regular exercise is not a major lifestyle risk factor for osteoporosis; in fact, it is one of the key protective factors against the development of this condition. Engaging in weight-bearing and muscle-strengthening exercises helps to improve bone density and overall bone health. Regular physical activity stimulates bone formation and can help mitigate bone loss, making it essential for maintaining strong bones, particularly as one ages.

In contrast, inactivity, smoking, and excessive alcohol intake are recognized as significant risk factors for osteoporosis. Inactivity leads to a decrease in bone strength due to a lack of mechanical stress on the bones, which is necessary for maintaining bone density. Smoking has been shown to negatively affect bone health by decreasing estrogen levels and bone density. Excessive alcohol intake can interfere with the body's ability to absorb calcium and can also affect the production of hormones that are crucial for bone health. Each of these factors contributes to an increased risk of developing osteoporosis, highlighting the importance of lifestyle choices in bone health.