Physical therapy is a type of treatment that helps patients with all phases of healing, from initial diagnosis to restorative and preventive stages of recovery. It may be a standalone option, or it may support other treatments.
Some patients are referred to a physical therapist by a doctor, while others seek therapy themselves. Physical therapy treatment may involve:
Iontophoresis: This uses an electrical current to deliver certain medications, such as topical steroids. This can decrease the presence of inflammation.
Electrical stimulation (e-stim): There are two types of e-stim. Transcutaneous electrical nerve stimulation reduces pain. By contrast, neuromuscular electrical stimulation works to stimulate muscular motor units to improve muscular engagement.
Light therapy: This involves using special lights and lasers to treat certain medical conditions.
Although physical therapists may not directly and independently treat the medical condition other than pure musculoskeletal conditions, they work to optimize recovery or educate a person on how to optimize their movement patterns.
Some conditions that could benefit from physical therapy are: cardiopulmonary conditions, such as chronic obstructive pulmonary disease, cystic fibrosis, and post-myocardial infarction heart failure; neurology.

The example about the mattress sizing page you mentioned in the last WBF can be a perfect example of new keywords and content, and broadening the funnel as well. I can only imagine the sale numbers if that was the site of a mattress selling company.