Conclusion: Despite the potential for improving physical and mental health, only 58% of US workers participated in WHPPs.

These programmes have also been used successfully to enhance the lives of the young participants by means other than improving physical health.

Exercise, specifically resistance (weight) training, has been shown to be an effective countermeasure, arresting decline and substantially improving physical function.

Overall, knee surgery was no better than these alternatives for improving physical function, and resulted in only a small reduction in pain.

Anabolic androgenic steroids (AAS) are among the drugs most used by athletes for improving physical performance, as well as for aesthetic purposes.

Improving physical performance also doesn't mean an older person's fear of falling goes away.