Karen Toennis brought her husband to Houston Methodist MDA-ALSA Clinic for treatment. Seven years later, she is the clinic coordinator.

Kevin Kinchen, who has a sporadic form of ALS, discusses how to live every day as if it were the last one.

Nurse practitioner Monique Green works with HIV patients. She sees the challenges her patients face and sometimes compares them to her own. She is a single mom who has ALS.

Janice and John Sachs finished each other’s sentences for nearly 50 years. Progression of Janice’s Alzheimer’s disease leaves John to do most of the talking and has changed their family dynamics.

CBS sportscaster Jim Nantz shares how his father's struggle with Alzheimer's disease inspired him to help others by establishing the Houston Methodist Nantz National Alzheimer Center. 

Matt Futer was given less than 3 months to live when he was initially diagnosed with glioblastoma. After successful treatment of an experimental gene therapy clinical trial, Matt has been cancer free for over 10 years. 

Jed Duplantis thought he had a sinus infection until vision problems prompted him to see his doctor. He underwent endoscopic surgery after imaging revealed a large pituitary tumor pressing on his optic nerve. 

Left untreated, Marcie Lester's condition could have blinded her. She underwent minimally invasive neurosurgery to remove a pituitary tumor and restored all loss of function. 

Kristen Daniell began suffering from migraine headaches that became progressively worse, eventually leading to partial paralysis. After tests revealed a tennis-ball sized brain tumor she underwent advanced surgery to remove the tumor and she made a full recovery.

Nancy Green was reading a book when suddenly the words became a jumble of meaningless letters. It was the result of a tumor in the portion of the brain that controls speech and interpretation of words. She underwent an awake craniotomy to test her speech and reading functions during surgery to ensure a successful procedure. 

Adnand Mizra was treated for neurofibromatosis, a genetic disorder that disturbs the growth of cells in the nervous system and causes tumors to form on nerve tissue, including the spine. 

Belinda Amboree experienced a progressive loss of vision which led her to her being diagnosed with a pituitary tumor. She underwent endoscopic surgery to remove the tumor that was pressing on her optic nerve.

Doug Wood sustained severe head injuries in a bicycle accident. During the treatment for his injuries, imaging revealed a significant tumor that was partially compressing his spinal cord.

Britton Cartwright started playing soccer when she was three years old. The headaches she started experiencing as a college player led her to see a concussion specialist. 

After a Parkinson's disease diagnosis, John Sinclair underwent deep brain stimulation (DBS) to reduce stiffness, tremors and involuntary movement disorders. 

At 28 years old, Nicki James Petrelli had an ischemic stroke while attending church. A tissue plasminogen activator (tPA) drug saved her life. 

Chris Bolio felt clumsy and uncoordinated, bumping into walls and losing balance days after competing in a triathlon. A hole in his heart caused Bolio to suffer a stroke.

Tokashemia Carter suffered from patent foramen ovale (PFO), or a hole in the heart. The condition contributed to a stroke. Carter participated in a Houston Methodist trial involving a PFO implant.