In the wake of a cancer diagnosis revealed publicly yesterday, Tom Brokaw says he's "very optimistic about his future" and has no plans to slow down anytime soon. 

The 74-year-old announced that he has been battling multiple myeloma, a blood cancer, since August, with treatments for the incurable disease progressing well. 

"His doctors are optimistic about the outcome of the treatment he is receiving," reported NBC, the home network of the legendary anchor since 1966.  

NBC added that the diagnosis has not slowed down Brokaw, who has continued to appear on special reports for “Today,” “Nightly News with Brian Williams,” “Meet the Press," MSNBC and the Winter Olympics in Sochi.

“With the exceptional support of my family, medical team and friends, I am very optimistic about the future and look forward to continuing my life, my work and adventures still to come,” Brokaw said in a statement. “I remain the luckiest guy I know.”

Multiple myeloma causes plasma cells in the blood (the same that fight infections) to abnormally grow in number and release unhealthy levels of protein into the blood and bones. Over time, such concentrations can lead to organ damage and a weakening of the bones. Treatment often includes a mix of chemotherapy, drugs, and stem cell transplants. With proper treatment, most people will live for years after the initial diagnosis, according to WebMD.

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Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

Doctors 'optimistic' after Tom Brokaw's cancer diagnosis
The former NBC News anchor, who is battling blood cancer, says he's 'the luckiest guy I know.'