Back in 1985, a wierd factor occurred to the star: he developed a nostril bleed that wouldn’t cease.

When he was admitted to the hospital on the time, Newhart discovered that the symptom was an indication of a sinister situation. He had secondary polycythaemia that was attributable to his extreme smoking.

“My realization about the evils of nicotine came one summer day in 1985 when I developed a nosebleed that just wouldn’t stop,” the star wrote in his 2006 book I Shouldn’t Even Be Doing This! And Other Thing That Strike Me as Funny.

Secondary polycythaemia is when the body overproduces red blood cells. The blood becomes thicker and has a harder time travelling to the organs.

READ MORE: Paul Newman: Risk factors of the ‘horrible’ disease that killed actor

It can lead to blurred vision, high blood pressure and blood clots.

Smoking causes the disease because it prevents the blood from doing its job of delivering oxygen to the body while triggering the body to create the proteins linked to the production of new red blood cells.

Newhart wrote: “In practically each {photograph} we’ve of me within the fifties, sixties, and seventies, I’m holding a cigarette. I all the time smoked onstage … I used to be so addicted that if I awoke within the night time to go to the toilet, I’d mild a cigarette for the stroll.”

According to a research revealed in 2019, smoking results in the expression of the EPOR gene.


What are the signs of secondary polycythaemia

Tiredness, dizziness, and discomfort in your tummy could also be indicators that you’ve the illness.

Other indicators embrace the next, as listed by the NHS:

  • Red pores and skin in your face, arms and ft
    Itchy pores and skin after a shower or bathe

Secondary polycythaemia is distinct from major polycythaemia whereby there are issues within the cells inside the bone marrow that are remodeled into purple blood cells.