Fumar e cancro?

Fumar provoca cancro e impede que o corpo combata o cancro:
https://www.thetimes.co.uk/article/smoking-stops-your-body-fighting-deadly-cancer-xx6c8nbnj

Citando:
"A study found that patients with melanoma who had smoked were 40 per cent less likely to survive the skin cancer than those who had not smoked.

Further analysis based on participants’ genes suggested that smoking might harm the immune system’s ability to fight melanoma.

The researchers said that their findings were another reason for people to stop smoking, particularly if they had received a diagnosis of melanoma, the most deadly form of skin cancer."

Smoking / Vaping?

Vaporizar faz menos mal de acordo com este vídeo do SNS do RU:
https://www.bbc.com/news/av/health-46697036/smoking-v-vaping-watch-lab-test-results

Citando:
"If you're going to try to quit smoking in the new year, try vaping, a UK government advisory body says.

Public Health England has launched a campaign video showing the dangers of traditional cigarettes, and has carried out an experiment demonstrating how e-cigarettes are much less harmful.

It says people can search "Smokefree" for NHS advice on quitting."

Alternativas ao tabaco? Lei do tabaco alterada

Lei alterada equivale as alternativas ao tabaco ao tabaco e, como tal proibe-as em sítios aonde se viam ser usadas. E por serem alternativas não quer dizer que sejam inofensivas...
http://www.dnoticias.pt/pais/fumar-nalguns-locais-ao-ar-livre-passa-a-ser-proibido-a-partir-de-segunda-feira-YE2547634

Anti-inflamatório Ibuprofen e redução de cancro do pulmão (fumadores)

Se se quiser ignorar os efeitos secundários, parece que o ibuprofeno - em pequenas doses - diminui a probabilidade de os fumadores contrairem cancro do pulmão:
http://www.dailymail.co.uk/health/article-4009958/Regular-doses-ibuprofen-lowers-smokers-risk-lung-cancer-48.html
Citando:
"Regular [small] doses of ibuprofen 'lowers smokers' risk of lung cancer by 48%'"

@2016-12-28: Editado para Ibuprofen

Mutações genéticas por tabaco - Estudo

http://www.dailymail.co.uk/health/article-3902574/Smoking-pack-day-causes-150-mutations-lung-cell-research-shows.html


Citando:
"'Before now, we had a large body of epidemiological evidence linking smoking with cancer, but now we can actually observe and quantify the molecular changes in the DNA,' he added.
Mike Stratton, who co-led the work at Britain's Wellcome Trust Sanger Institute, said it was a bit like digging in to the archaeology of each tumour.
'The genome of every cancer provides a kind of archaeological record, written in the DNA code itself, of the exposures that caused the mutations,' he said. "

Fumar provoca alterações duradouras no ADN

http://m.huffpost.com/uk/entry/uk_57e39f9fe4b0db20a6e85f4e
Citando:
"A new study has shown that smoking causes DNA methylation – a cellular process, which modifies the function of DNA – in as many as 30% of genes in the human body.



Quitting will benefit your health in other ways, [but] even three decades after stopping, some smokers still had persistent methylation sites in numbers never seen in non-smokers."


Estudo:
http://newsroom.heart.org/news/smoking-leaves-historical-footprint-in-dna

Bactérias no tabaco de mascar

Citando:
"vomiting.
The study found that these chewable tobacco products contains bacillus licheniformis and bacillus pumilus -- bacteria species -- that could potentially cause inflammation of the lungs, as well as many other opportunistic infections.
"Some species have been identified as causative agents in spice-related outbreaks of  diarrhoea and vomiting. Additionally, they produce a mild toxin which, in large quantities could cause illness," said Steven Foley, research microbiologist at the National Centre for Toxicological Research, US Food and Drug Administration.
Several species of bacillus, as well as some stapphylococcus epidermidis and staphylococcus hominis strains can reduce nitrates to nitrites that can potentially lead to cancer, Foley added."

Sobre o tabaco - Guardian

Artigo de fundo sobre o tabaco e alguns mitos associados:
https://www.theguardian.com/science/sifting-the-evidence/2016/jun/02/say-why-to-drugs-the-smoke-and-mirrors-of-tobacco-cigarettes-harm
PS. Também em podcast.

O álcool e o tabaco - UK

http://www.thisismoney.co.uk/money/news/article-3435230/Drinks-industry-reacts-dismay-Government-s-proposed-new-guidelines-drinking-describing-scare-mongering-confusing.html
A indústria das bebibas reage às novas linhas orientadoras do consumo de álcool no Reino Unido (mais restritivas quando comparadas com as de outros países).


http://www.gmanetwork.com/news/story/554341/lifestyle/healthandwellness/smoking-bans-lead-to-better-national-health
Estudos de 21 países indiciam melhor saúde depois das restrições a fumar em locais públicos. Ainda me lembro de me sentir incomodado da mesa ao lado acender obseu cigarro depois de comer enquanto eu ainda estava a meio. Coisas do passado, felizmente.