Howe, accompanied by Marty, makes public appearances at an annual series of Scotiabank Pro-Am hockey tournaments across Canada. More than $16 million has been raised by the Gordie and Colleen Howe Fund for Alzheimer's.
Howe is scheduled to attend a Canucks game in Vancouver on Thursday night to promote a Scotiabank Pro-Am in that city later this year.
Marty says his father plans to help kick off the same tournaments in Edmonton, Calgary and Toronto this spring.
He also will also attend a news conference Thursday afternoon in advance of a tribute in his honor at Friday's Vancouver Giants game.
Howe has his photo taken with fans and signs autographs under Marty's watchful eye at the events. A speech isn't an option anymore. Fatigue tends to exacerbate Howe's condition and Marty doesn't want his father feeling strained.
"If you see him now, obviously you can kind of tell he's not firing on all cylinders," Marty says. "Most people see Gordie and they're just happy Gordie is talking to them."
Marty was alarmed by a decline in his father's condition before an appearance in Calgary last year, but didn't want his condition made public until the family had a better handle on his condition.
"For people who are dealing with this, you have to have a sense of humor," he said. "Nobody wants to see their family members go through this. It gets harder. Towards the end, it's really no quality of life whatsoever. Pretty depressing, but you have to find the humor in some of it. Otherwise, it will kill you, too."
Marty and Murray are just grateful the dementia hasn't changed their father's personality or attitude so far.
"We're enjoying the times we have now," Marty said.
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