Poluição atmosférica 3 meses depois?

Não, ouro 3 meses depois (porque os críticos do estudo defendem que o ouro não é representativo a poluição atmosférica):
http://www.independent.co.uk/news/science/air-pollution-enter-bloodstream-deadly-smoking-gun-study-edinburgh-university-gold-nanoparticles-a7702991.html

Citação:
"Tiny particles – like those produced in vast amounts by burning fossil fuels – can pass through the lungs into the bloodstream and then damage various different organs, according to a controversial new experiment.

While air pollution has been linked to heart disease and millions of premature deaths, it was previously not known whether it was possible for the smallest particles to pass from the lungs into the bloodstream.

The new research saw 14 healthy volunteers and 12 surgical patients inhale nanoparticles of gold.

Gold was detected in the blood and urine within 15 minutes to 24 hours after exposure, and was still present three months after exposure. Levels were greater following inhalation of five-nanometre particles compared to 30nm particles."

Sal e hipertensão nem por isso?

Estudo questiona que sal provoca tensão alta:
http://www.dailymail.co.uk/health/article-4443612/Low-salt-diets-not-lower-blood-pressure.html

Citando:
"Researchers followed more than 2,600 men and women over a period of 16 years
They discovered that consuming less salt wasn't linked to lower blood pressure
New findings call into question salt limits recommended by dietary guidelines

Cutting salt from your diet may not be the answer to lower blood pressure, a study has found.

The NHS advice is for adults to eat no more than six grams of salt a day – the equivalent of 2.4 grams of sodium.

But a study by Boston University found people consuming less salt than this actually had higher blood pressure, prompting a call for the guidance to be changed.

Researchers say the advice to eat less salt is too simple and ignores the fact that salt can raise hormone levels in the body which regulate and keep blood pressure low.
(...)
While many people with heart disease who cut salty, processed food out of their diet do see their blood pressure fall, these tend to be 'salt-sensitive' people, which may be why they have bad hearts to begin with.

Salt can cut blood pressure in some people, but the experts say potassium, found in bananas and potatoes, can help tip the balance too, along with magnesium and calcium. 

Levels of these could explain why some people who consumed more than six grams of salt had lower blood pressure."

Comer macacos?

Há estudos (e notícias) para todos os gostos. Agora é sobre macacos, mas não os da selva, são os do nariz - diz que faz bem comer os próprios, ao microbioma e que quem "bate" nos filhos por comer macacos é mau pai (ou mãe, conforme o caso):
http://www.mirror.co.uk/lifestyle/family/you-should-encourage-your-kids-10292475

Citando:
"Snot contains salivary mucins which in fact protect our teeth from the bacteria strains which cause cavities by preventing it from attaching itself to teeth.(...)
There's also some evidence the mucus in snot could defend against respiratory infection, stomach ulcers and HIV. The list of reported benefits goes on and on."

Alguns sintomas que podem advir de carência de certas vitaminas ou minerais

Alguns sintomas de deficiência de vitaminas ou minerais (infografia e texto de suporte):
How bad breath could be a sign of a vitamin deficiency | Daily Mail Online

Citando:
"A range of common symptoms many adults suffer from could be explained by poor diets and a lack of minerals and vitamins. Here, MailOnline Health reveals how to combat bad breath, headaches and even stress"
(...)
"DON'T JUST ACCEPT THE SYMPTOMS
(...) 'Many of these symptoms are things people put up with every day, thinking they are just par for the course.
'But often, they could be a sign that you are suffering a vitamin or mineral deficiency and simply eating foods which contain the item you are lacking could ease your symptoms.
'For example, a headache could be an indicator that you need more magnesium, vitamin B12 and B6 - something you can get from eating pumpkin seeds, prunes, banana or fortified soy milk.
'And even bad breath, while a possible sign of poor oral hygiene, could also be linked to your gut health and an iron deficiency.
'It's important to bear in mind that your ability to absorb vitamins and minerals can also be affected by medications you are taking, such as antibiotics or the oral contraceptive pill as well as aspects of your diet such as whether you drink tea or coffee.'"

Café não provoca desidratação (significativa) | Índice de Hidratação das Bebidas

Café e desidratação. A teoria que deve começar a levar a sério

Citando:

"Uma dessas teorias diz de que não se deve beber café quando se está com diarreia ou quando está muito calor, sob a pena da bebida promover uma maior desidratação.
Ora, o café é, de facto, um alimento diurético (se bem que fraco), mas está longe de conseguir provocar ou agravar uma desidratação.

Quem o diz é Ben Desbrow, professor da Universidade de Griffith, que, num artigo assinado no site The Conversation, começa por explicar que urinar não conduz inevitavelmente à desidratação – condição que dá nome à perda excessiva de água corporal.

Recorrendo às conclusões de estudos feitos sobre o tema, o especialista mostra que o consumo de cafeína não promove desidratação e nem tão pouco altera a produção e cor da urina, podendo, claro, o efeito da bebida mudar de pessoa para pessoa e ficar condicionado por outros fatores, como condição de saúde ou quantidade ingerida.

Contudo, e mais uma vez, destaca que a cafeína não é assim tão diurética como as pessoas pensam e nem sequer consta no Índice de Hidratação de Bebidas, uma lista criada recentemente e que revela quais os alimentos que mais interferem com os valores de água corporal."

Sobre o índice de hidratação das bebidas

https://www.milkpoint.com.br/industria/cadeia-do-leite/giro-de-noticias/pesquisa-britanica-aponta-que-leite-hidrata-mais-do-que-agua-101608n.aspx

Citando:
"O estudo foi financiado pelo Instituto de Hidratação da Europa, que é apoiado por fundos da Coca-Cola Co., que vende refrigerantes, chá gelado, suco de laranja, água engarrafada e bebidas esportivas. Maughan disse que a Coca-Cola não se envolveu em nenhuma parte do estudo e que não escolheu os produtos usados. Ele disse que o estudo foi baseado em experiências de mais de 35 anos.

O índice de hidratação pode ser útil quando se toma decisões sobre quais bebidas consumir e quando. Por exemplo, se você está fazendo uma longa viagem e não terá acesso a fluidos (ou a banheiros), é mais inteligente beber leite com seu índice de hidratação do que água ou café gelado, apesar de o leite ter mais calorias do que a água."

Ai as vacinas! (mitos e verdades)

Agora que morreu alguém em PT com 17 anos e de uma doença que tem vacina (e gratuita) desde há muito... Convém explicar:
Mitos e verdades sobre as vacinas – Observador

Andar de bibicleta e risco de cancro e doenças cardíacas?

Cycling To Work Cuts Risk Of 'Cancer, Heart Disease And Premature Death From Any Cause' | The Huffington Post

Citando:
"Cycling to work cuts the risk of developing heart disease and cancer by almost half, research suggests.

Walking to work is also good for you, although it does not offer the same benefits as taking a bike, experts from the University of Glasgow found.

The new study on 264,337 people, 52% of whom were women, found cycling to work is linked to 45% lower risk of developing cancer and a 46% lower risk of cardiovascular disease, compared to driving to work or taking public transport.

Overall, cyclists had a 41% lower risk of premature death from any cause."

Subida de preços de medicamentos contra o cancro

Investigação desconfia de métodos discutíveis para forçar a subida de preços:
http://www.dailymail.co.uk/news/article-4411194/Drug-giant-plotted-destroy-stocks-cancer-medicines.html

Citando:
"The paper reported that in 2013 the cost of leukaemia drug busulfan rose from £5.20 to £65.22 in England and Wales, a 1,100 per cent jump, while blood cancer medicine chlorambucil went from £8.36 per pack to £40.51.

It is understood Aspen was able to impose the price rises by taking advantage of a loophole that allows increases if a brand name is dropped."

Poluição e bom colesterol?

http://www.independent.co.uk/news/science/air-pollution-heart-disease-heart-attack-coronary-pm25-black-carbon-a7683666.html

Citando:
"Air pollution could increase the chance of having a heart attack by lowering levels of ‘good’ cholesterol in the bloodstream, according to new research.

A study of more than 6,500 people in the US aged 45 to 84 found exposure to black carbon – a marker of traffic-related pollution – was “significantly associated” with reduced amounts of HDL cholesterol.

Higher amounts of fine particles known as PM2.5, which are produced by burning fossil fuels, were also linked to less HDL, which has a protective effect."

Leite e derivados (estudo)

Estudo que refere cuidados a ter a quem cortou (sem ser por conselho médico) o consumo de leite e derivados e avisos a adolescentes (pode ter consequências ao nível dos ossos e dentes):
http://m.huffpost.com/us/entry/us_58ef884ce4b0b9e98489e73d

E um sítio dedicado à saúde dos ossos:
https://staging.nos.org.uk/my-younger-self/

Citando (HP):
"Dairy-based items like yogurt, milk and cheese are typically the easiest way for children and young adults to get their recommended amounts of calcium and Vitamin D. These vital nutrients help with bone growth and tooth health. The nutrients in dairy also help with cholesterol and blood pressure in adulthood.

Adolescents in the U.S., defined as age 9 to 18, should get approximately 1,300 milligrams of calcium per day, according to the National Institute of Health. The recommended goal is about three servings of dairy daily.

There are plenty of perfectly sound reasons for giving up dairy products, as a lifestyle choice or for physical health. It just means you’ll have to be mindful of incorporating other calcium-rich foods into your diet, such as broccoli and kale or fortified options like tofu and cereal.

Another striking finding from the survey? How young people are making dietary choices. Those under the age of 25 were the most likely to follow health and fitness bloggers on social media, suggesting they may get their nutrition information from these sources."

Vai um abacate (síndrome metabólica)?

É caro (em PT) e, no mínimo meio... Insípido. Mas parece que traz mais um benefício (ajuda no tratamento da síndrome metabólica):
http://www.netdoctor.co.uk/healthy-eating/news/a28015/avocado-may-benefit-metabolic-syndrome-and-weight-loss-say-scientists/

Citando:
"Chunky guacamole or smashed with a poached egg? However you like your avocado, this 'superfood' favourite isn't going anywhere. Now scientists have added another healthy credential to its list of benefits, suggesting that there is "satisfactory clinical evidence" that avocado could help treat metabolic syndrome and support weight loss.

Metabolic syndrome is a cluster of risk factors (obesity, low levels of good cholesterol, high blood pressure, etc.) that combine to increase your risk of type 2 diabetes, heart disease and strokes."

Citando (FPC):
"A síndrome metabólica é um conjunto de fatores de risco, essencialmente cardiovasculares, que têm por base a obesidade abdominal. Os indivíduos portadores desta síndrome estão em risco de desenvolver doença cardiovascular (ataque cardíaco e AVC) e diabetes, mesmo quando os fatores de risco estão apenas ligeiramente elevados.

O diagnóstico de síndrome metabólica pode ser feito quando estão presentes pelo menos três fatores dos cinco seguintes: obesidade abdominal – perímetro abdominal que exceda 102cm no homem e 88cm na mulher indica gordura abdominal em excesso; trigliceridos iguais ou superiores a 150mg/dl; colesterol das HDL igual ou inferior a 40 mg/dl no homem e a 50 mg/dl na mulher; tensão arterial igual ou superior a 135/85 mmHg; e glicemia em jejum igual ou superior a 100 mg/dl.

A síndrome metabólica não dá sintomas e tem como único sinal a presença de um abdómen proeminente. Afeta mais de um terço da população portuguesa adulta."

Dietas limpas podem levar a osteoporoses?

http://www.independent.co.uk/news/health/clean-eating-trend-broken-bones-norm-future-experts-warn-national-osteoporosis-society-dairy-gluten-a7680041.html

Citando:
"Four in ten people aged between 18 and 24 have tried a ‘clean eating’ diet, according to an NOS survey of 2,000 adults.

The regimes usually involve avoiding processed foods and eating raw, unrefined produce, and often prohibit eating dairy, gluten and sugar.

More than a fifth of those in the same age group said they had significantly dropped their intake of milk and cheese.

But Vegan groups have said cutting out dairy does not necessarily pose a health risk, because essential nutrients such as calcium “can be easily obtained on a vegan diet”.

Susan Lanham-New, a nutrition professor and clinical advisor to the NOS, said young adults needed to make sure they were receiving nutrients from all major food groups.

“Diet in early adulthood is so important because by the time we get into our late twenties it is too late to reverse the damage caused by poor diet and nutrient deficiencies and the opportunity to build strong bones has passed,” she said.""

E droga pelo... Rabinho?

Parece que (para além de hoje ser o dia das notícias estranhas) esta droga vai poder ser tomada em supositório. Fumar é uma forma arcaica de a tomar (e representa um perigo para os pulmões):
http://www.medicaldaily.com/rectal-medical-marijuana-effective-safer-smoking-weed-suppository-wont-be-413077

Citando:
"Rectal marijuana? Weed suppositories? Smoking might be the most common way to get high, but apparently it’s not the best —at least for medicinal purposes. As Vice puts it, "...taking it up the butt is actually much more effective than smoking it." Talk of rectal marijuana hit the news cycle following a story in the National Post about Canadian healthcare professionals seeking safer ways to toke up. "
(...)
"To learn more about rectal marijuana, and the best way to get high (for health purposes), Medical Daily reached out to Kogan. He explains there are several ways to administer weed, including oral (which includes edibles), inhaled through smoking or vaping, sublingual in which cannabis is placed under the tongue, or rectally.  "

Microdosing

Basicamente é droga "aos cochichos", a  posse é apesar de tudo ilegal (em alguns países) e os efeitos secundários a médio-longo prazo são completamente desconhecidos:
http://www.bbc.com/news/health-39516345

Citando:
""Microdosing at a medical level, we know absolutely nothing about," he explains.

"The only way that we can sort out whether or not it works is by doing a blinded, placebo-controlled randomised trial."

He says the dangers of people self-medicating like this are currently completely unknown, and that is where the problem lies.

"The definition of a microdose is that you don't notice the subjective effect, but that doesn't mean it's not having any effect on you‬.

"We don't know what the risks in the long term might be.

"There was some concern before 1970 - when the drugs were being used clinically - that in people who were liable to develop schizophrenia and psychotic disorders, the drugs might actually uncover those problems in some people."

Mais fontes:
http://www.medicaldaily.com/boost-mood-foster-creativity-and-ease-anxiety-lsd-update-popular-microdosing-415281

Álcool e gravidez?

Parece que sim. E parece que quanto mais instruídas as pessoas (mães) pior:
https://m.medicalxpress.com/news/2017-04-norwegian-women-pregnant-british.html

Citando:
"It seems like a paradox that older and more highly educated women were more likely to drink during pregnancy, which also confirms prior research on the topic.

This study did not look at the relationship between education and the amount or frequency of drinking during pregnancy.

The study authors speculate whether older, more educated women might be more critical towards guidelines that recommend complete abstinence from alcohol during pregnancy. The authors wonder whether older women are less exposed than younger women to the health campaigns that warn against alcohol use during pregnancy, especially if they drank a little during previous pregnancies and had healthy children.

The study authors believe it is important for national campaigns to target all women of childbearing age:

"There is no defined safe minimum amount of alcohol to drink during pregnancy. We therefore recommend that all pregnant women should adhere to the guidelines for total alcohol abstinence during pregnancy," says Nordeng"

Parasita ataca no Havai

http://edition.cnn.com/2017/04/10/health/hawaii-rat-lungworm-disease-parasite/

Citando:
"Rat lungworm disease, a parasite officially known as Angiostrongylus cantonensis, affects the brain and the spinal cord, according to the Centers for Disease Control and Prevention."

Estudo polémico diz que chá é no micro-ondas

... E os ingleses estão... Indignados:
http://www.independent.co.uk/life-style/health-and-families/heating-cups-tea-microwave-health-benefits-warm-kettle-scientist-dr-quan-vuong-a7678451.html

Citando:
"finding ways to add value to to natural products “by extracting bioactive compounds with antioxidant capacities" (...).

This is his recommended method for making a brew:

Put hot water in the cup with your teabag. Heat in the microwave for 30 seconds on half power. Let it sit for a minute.

Dr Vuong concluded that the above technique activated 80 per cent of the caffeine, theanine and polyphenol compounds in black and green teas, whether loose leaf or tea bags. "

Alimentos com alto teor de potássio

(a evitar por quem tem doença renal, quem faz hemodiálise):
https://www.portaldadialise.com/articles/frutas-e-legumes-que-sao-aceitaveis-para-doentes-com-doenca-renal-cronica

Citando:
"Frutas e legumes que contem níveis de potássio elevado incluem: alcachofra, batata, bróculos, curgete, couve-portuguesa, tomate, couve, alho-francês, espinafres, beterraba, couve-lombarda, couve de bruxelas, damascos, abacaxi, melão, tâmaras, bananas, laranjas, ameixas, passas, melancia, batata-doce e espinafre."

Definição de alimento com baixo teor de sódio e tipos de sal

Um grama de sal grosso (sal de cozinha) contém cerca de 400mg de sódio. Outros tipos de sal contêm teores de sal diferentes (ver abaixo).

Um alimento​ com baixo teor de sódio o que é?
http://pt.m.wikihow.com/Ter-uma-Dieta-com-Baixo-Teor-de-S%C3%B3dio

Citando:
""Procure pela inscrição "baixo teor de sódio". Essa indicação deve significar que o alimento contém 140 miligramas ou menos de sódio por porção. Pode também procurar por alimentos "sem sódio" (menos de 5 miligramas por porção) e "com pouco sódio" (menos de 35 miligramas por porção). Outra opção é buscar por alimentos "sem sal"."
A OMS recomenda que a ingestão diária de sódio seja abaixo dos 2000mg (2g)."

A OMS recomenda consumos abaixo dos 5g de sal / dia (2000 mg de sódio):
http://www.dietaseregimes.com/qual-a-quantidade-de-sodio-de-cada-tipo-de-sal/

Citando:
E os outros tipos de sal (para além do cloreto de sódio) que quantidade de sódio contêm?

"1 g de flor de sal = 450 mg de sódio

1 g de sal marinho = 420 mg de sódio

1 g de sal de cozinha / sal refinado = 400 mg de sódio

1 g de sal grosso = 400 mg de sódio

1g de sal defumado = 395 mg de sódio

1 g de sal havaiano = 390 mg de sódio

1 g de sal negro = 380 mg de sódio

1 g de sal rosa do Himalaia = 230 mg de sódio

1 g de sal light = 197 mg de sódio"

Sobre o cloreto de sódio:
https://pt.m.wikipedia.org/wiki/Cloreto_de_sódio

Potássio ajuda a controlar a tensão arterial

http://www.dailymail.co.uk/health/article-4386998/How-reverse-high-blood-pressure.html

Citando:
"High blood pressure is most often caused by increased levels of dietary sodium
Known as hypertension, it is believed to affect 1 billion people around the world
But scientists have found potassium balances out the effects of salt in the body
Experts claim that the mineral works in the same way as commonly used drugs"
(...)
"HOW MUCH SHOULD YOU EAT?

A 2004 Institute of Medicine report recommends that adults consume at least 4.7 grams of potassium per day to lower blood pressure. This amount would also blunt the effects of dietary sodium and reduce the risks of kidney stones and bone loss. For example, eating three quarters of a cup of black beans will help you achieve almost 50 per cent of your daily potassium goal.

While to achieve the full amount, you would have to consume 11 bananas. "

Antibióticos e Stress Pós-Traumático?

Em mais uma notícia (aparentemente) improvável, antibióticos parecem poder ajudar em Stress Pós-Traumático (de que muitos militares sofrem):

Hope for troops as antibiotics show they could be 'exciting new treatment' for PTSD

Citando:
"While the UCL researchers acknowledge the nature of traumatic events makes it impractical to start people on antibiotics before they happen, they said the drugs could be used subsequently to lessen the “reconsolidation” of memories in the aftermath.

PTSD is thought to affect around one in three people who suffer a traumatic event, which can range from experience of war, a road accident or being diagnosed with a serious illness.

Between one in 20 and one in 25 UK veterans of the Iraq and Afghanistan wars suffer from PTSD, according to the charity Combat Stress.

While this is similar to the rate in the general population, the complexity of the disorder tends to be far greater in former servicemen and women, and also occurs alongside aggravating problems such as pain or alcohol misuse."

Uso de células indiferenciadas do cordão umbilical

Artigo muito interessante que descreve os diversos usos que estão a ser dados a células indiferenciadas do cordão umbilical (que até há muito pouco tempo eram sempre deitados fora):
http://www.independent.co.uk/news/long_reads/cancer-treatment-umbilical-cord-blood-donation-mosaic-a7651891.html

Citando:
"Cord blood contains what are known as stem cells and progenitor cells, which can give rise to oxygen-carrying red blood cells, infection-fighting white blood cells and clot-forming platelets. 

Transplanted cord blood can be used to treat or cure more than 80 conditions, from leukaemia to sickle-cell disease. Based on current research exploring autism, brain injury, cerebral palsy, type 1 diabetes and cardiovascular disease, among others, the list of potential applications is likely to grow. Emerging strategies are even transforming cord blood left over after birth into a potent potion that might provide lifesaving treatments for victims of a nuclear disaster. 

Stem and progenitor cells are also found in the spongy marrow within some bones and in the blood that circulates around our bodies. But cord blood, once dismissed as medical waste, is particularly rich in these cells. As researchers are discovering, it may carry other significant advantages too.

While a cord blood transplant might save your life, though, going through the process and then starting anew – your survival down to an anonymous baby – is far from easy."

Esquecer os crispies (acrilamida)?

Dir-se-ia que sim: Apesar destas marcas não existirem em PT, o panorama dos crispies no Mac, KFC e afins não deve ser muito diferente:
http://m.huffpost.com/uk/entry/uk_58e26d43e4b0b3918c85402a

Citando:
"Almost one in five crisp varieties contain high levels of a known carcinogen called acrylamide, a new report has revealed.

Acrylamide has the potential to cause cancer in humans and, as such, is considered a public health concern by the European Food Safety Authority (EFSA). 

A review of 92 types of crisps from major UK snack brands and supermarkets found that some crisps - including snacks from Tyrrells, Aldi and Morrisons - exceeded the maximum recommended level of acrylamide."

(...)
"These levels are 2.5-times above the European benchmark, which is 1000 micrograms per kilogram and over 83-times higher than products with the lowest concentration.

Morrisons’ cheese and onion flavoured popped potato snacks came next, containing 2067 micrograms of acrylamide per kilogram, followed by the supermarket’s sea salted crinkle cut potato crisps which contained 1826 micrograms per kilogram."

Viagra venda livre no país mais livre do mundo (depois do Brexit)?

Está a ser proposto que o Viagra seja de venda livre (vendido sem receita médica) no RU:
http://www.mirror.co.uk/news/uk-news/viagra-could-soon-available-over-10113518

Citando:
"Packs of eight tablets of Viagra - also called sildenafil - would be made available, with men told to take no more than one tablet per day.

Viagra, which works by relaxing blood vessels, thereby allowing blood to flow to the penis, works for about eight hours and is designed to be used "on demand".

Erectile dysfunction can be caused by a range of conditions, including psychological problems, but can also be a sign of underlying heart disease, diabetes or high blood pressure."

Deficit de atenção: uma fraude (dos psicólogos e da indústria)?

http://curiousmindmagazine.com/harvard-psychologist-says-adhd-largely-fraud/