When a woman in Karen’s church was diagnosed with ALS (amyotrophic lateral sclerosis, also known as Lou Gehrig’s disease), things looked bad. This cruel disease affects nerves and muscles, eventually leading to paralysis. The family’s insurance wouldn’t cover home care, and the stricken woman’s husband couldn’t bear the thought of putting her in a nursing home.

As a nurse, Karen had the expertise to help and began going to the woman’s home to care for her. But she soon realized she couldn’t take care of her own family while meeting the needs of her friend, so she started teaching others in…