For Mac OS users, there is a system setting that may not allow you to tab onto several types of elements in a web page. To change this setting:
• Allows greater freedom of movement and improved posture
• Increases physical and mental relaxation
• Releases muscle tension and soreness
• Reduces risk of injury
Some people are naturally more flexible. Flexibility is primarily due to one's genetics, gender, age and level of physical activity. As we grow older, we tend to lose flexibility, usually as a result of inactivity rather than the aging process itself. The less active we are, the less flexible we are likely to be. As with cardiovascular endurance and muscle strength, flexibility will improve with regular training.