Age
When we get older, many body parts can become weaker. And the ACL is one of them. Once you reach the age of 40 years old, some degenerative changes might happen within the anterior cruciate ligament. More specifically, fibers that make up this part would be less organized and have symptoms of deterioration. Also, the number of stem cells can drop gradually, which causes a decrease in cellular activity. All of these changes make older people more susceptible to ACL injury and damage. Regular workouts and a healthy diet can help slow down the aging process and reduce the risk. [9]
