Cologne was originally produced as protection against the plague. It was widely believed that bad-smelling air spread the disease.
From 1927 to 1952, Tobacco Companies used pictures of doctors in their advertising and used slogans claiming that doctors endorsed their brand.
Smokers whose insula got damaged after a stroke were able to quit smoking easily one day after the stroke, with no relapse and urges, suggesting that this brain region might play a role in nicotine addiction.
In 1604, King James I wrote ‘A Counterblaste to Tobacco’, in which he described smoking as a ‘custome lothesome to the eye, hateful to the nose, harmful to the brain, dangerous to the lungs.
The term ‘patient 0’ is based on a misunderstanding. An early HIV patients was named ‘patient O’, standing for ‘patient OUT of California’. People misinterpreted this letter as the numeral 0, leading to its wide usage today.
Scientist Claire Patterson spent over 20 years trying to convince the public that lead was poison.
The inventor of leaded gasoline meanwhile once went to New Jersey to argue that leaded gasoline was perfectly safe, by pouring tetraethyllead onto his hands, and then putting a bottle of it under his nose and inhaling it for 60 seconds saying he could do it every day without any problems. He then had to leave work after being diagnosed with lead poisoning.
He also went on to invent Freon, a CFC that was later banned after being shown to be responsible for ozone depletion.
Then he got polio, so he invented another thing, a pulley system that let him pull himself out of bed. He would then die after becoming entangled in this and strangling himself.
Dr. Werner Forssmann fed a catheter into an artery in his arm and on into his heart without knowing what the consequences would be. He then made an X-ray as proof. This procedure eventually revolutionised heart surgery. In 1956 he was awarded with the Nobel Price for Physiology or Medicine.
A cat’s purr frequency is between 25 and 150 Hertz. This frequency corresponds with the frequency that scientists have found that promote bone density and healing. This vibrational frequency technique is used in astronauts to help mitigate bone density issues from low gravity.
In 2019, researchers from Tel Aviv University successfully 3D-printed a human heart using a patient’s own cells. Biological materials were reportedly used to “completely match the immunological, cellular, biochemical, and anatomical properties of the patient.”
People with dementia think that stuff like a black doormat isn’t a doormat, but a deep hole in the floor. Due to these visual perception problems, people with dementia avoid stepping the doormat, and this is sometimes used to keep them from leaving their care facilites.