Erros alimentares comuns (BBC)

http://www.bbc.com/portuguese/geral-39453226

Rabujice e mau feitio compensam?

http://www.bbc.com/future/story/20160809-why-it-pays-to-be-grumpy-and-bad-tempered?ocid=fbfut

Citando:
"The truth is, pondering the worst has some clear advantages. Cranks may be superior negotiators, more discerning decision-makersand cut their risk of having a heart attack. Cynics can expect more stable marriages, higher earnings and longer lives – though, of course, they’ll anticipate the opposite.

Good moods on the other hand come with substantial risks – sapping your drive, dimming attention to detail and making you simultaneously gullible and selfish. Positivity is also known to encourage binge drinking, overeating and unsafe sex."

Guerra dos antibióticos?

Desde 1980 que não se descobrem novos antibióticos:
http://www.bbc.com/news/health-21702647

E porque é que isso é importante? Porque desenvolvem resistência e porque são muito mais usados do que se pensa.
Citando:
"Antibiotics are more widely used than you might think and a world without antibiotics would be far more dangerous.

They made deadly infections such as tuberculosis treatable, but their role in healthcare is far wider than that.

Surgery that involves cutting open the body poses massive risks of infection. Courses of antibiotics before and after surgery have enabled doctors to perform operations that would have been deadly before.

Cancer treatments such as chemotherapy and radiotherapy can damage the immune system. A course of antibiotics is prescribed to provide a much-needed boost alongside your body's own defences.

Anyone with an organ transplant faces a lifetime of drugs to suppress the immune system, otherwise it attacks the transplant, so antibiotics are used to protect the body."

Intermitent fasting - o que é?

http://www.bbc.com/news/magazine-25498742 e...

O que é (citação):
"During each five-day fasting cycle, when I ate about a quarter the average person's diet, I lost between 2kg and 4kg (4.4-8.8lbs) but before the next cycle came round, 25 days of eating normally had returned me almost to my original weight.
But not all consequences of the diet faded so quickly."

http://www.bbc.com/news/magazine-25549805 (os efeitos: redução de IGF-1 associada ao crescimento de certos cancros e aparecimento de células regeneradoras, embrionárias - Stem Cell like).

Citando:
""You had a dramatic drop in IGF-1, close to 60% and then once you re-fed it went up, but was still down 20%," Longo told me.

Such a reduction could make a significant difference to an individual's likelihood of developing certain cancers, he says. A study of a small population of people in Ecuador, who have much lower levels of IGF-1, because they lack a growth hormone receptor, showed that they rarely develop cancer and other age-related conditions.

My blood tests also revealed that the major inhibitor of IGF-1, which is called IGFBP-1, was significantly up during the fasting period. Even when I resumed a normal diet, the IGFBP-1 level was elevated compared with my baseline. It is, according to Longo, a sign that my body switched into a mode that was much more conducive to healthy ageing.

Data from other participants in the study is still being analysed, but if they also show lower levels of IGF-1 and higher levels of IGFBP-1, it could help scientists develop an intermittent fasting regime that allows people to eat a normal diet for the vast majority of the time, and still slow down the ageing process.

One idea being explored by Longo is that a five-day intervention every 60 days may be enough to trigger positive changes in the body.

"This is exactly what we have in mind to allow people, for let's say 55 every 60 days, to decide what they are going to eat with the help of a good doctor, and diet in the five days. They may not think it is the greatest food they have ever eaten, but it's a lot easier, let's say, than complete fasting and it's a lot safer than complete fasting and it may be more effective than complete fasting."

The very small meals I was given during the five-day fast were far from gourmet cooking, but I was glad to have something to eat. There are advocates of calorie restriction who promote complete fasting.

My blood tests also detected a significant rise in a type of cell, which may play a role in the regeneration of tissues and organs."

Linhas orientadoras de consumo de álcool no RU explicadas

A percepção dos efeitos do álcool mudou muito em 20 anos e o RU alterou radicalmente as suas linha orientadoras de consumo (em Janeiro de 2016) para 14 volumes de álcool por semana, uma das mais restritivas na Europa. Detalhes da decisão e das quantidades recomendadas:
http://www.bbc.com/news/uk-35252650
Citando:
"The review found that the benefits of alcohol for heart health only apply for women aged 55 and over - and even then it's in very small amounts, around five units a week.
The guidelines say: "There is no justification for recommending drinking on health grounds - nor for starting drinking for health reasons."
It also says that evidence in support for drinking alcohol in small amounts to maintain good health was "weaker than it was at the time of 1995"."
(...)

Is there a safe drinking level?


No. The new recommendations are at pains to point out that these guidelines are not for "safe" drinking, but rather just at minimising risk of illness.
All alcohol consumption carries some risk, the guidance says.
"The vast majority of the population can reduce health risks further if they reduce drinking below the guideline levels, or do not drink at all," the guidance says.
Drinking above the new recommended 14 units a week is the point at which a person's risk of an early death increases by 1% - the equivalent amount of risk as driving a car."




PS. Muito interessante a tabela com os limites de diversos países (Espanha, 38; RU, 14). Se a ciência e investigação é a mesma, porque é que não há consenso nos limites, nem sequer na Europa?

Why does my exercise clothing smell? - BBC News

Artigo interessante que aprofunda algo já conhecido: O nosso cheiro depois do exercício deriva de bactérias (existentes na nossa pele ou no meio ambiente) e algumas devem "dar-se melhor" em certos tipos de tecido do que noutros. O que faz com que certos tecidos nos deixem a cheirar pior que outros. Elementar meu caro W...



Interessante a identificação de algumas bactérias em concreto:

Why does my exercise clothing smell? - BBC News

O que acontece no nosso corpo quando desmaiamos - BBC

http://www.bbc.com/portuguese/noticias/2016/02/160223_desmaio_explicacao_ciencia_fn

Questionar a dieta sem glúten? - BBC

Artigo com muita informação sobre o glúten, quando podemos ter de o evitar e caso o façamos que cuidados devemos ter:
http://www.bbc.com/portuguese/noticias/2016/02/160208_dieta_sem_gluten_duvidas_fn

É possível queimar mais gordura sem fazer mais exercício? - Globo / BBC

http://g1.globo.com/bemestar/noticia/2016/01/e-possivel-queimar-mais-gordura-sem-fazer-mais-exercicio.html
Citando:
Alguns estudos sugerem que há uma maneira de fazê-lo: sincronizar, da maneira mais eficiente, a hora em que comemos e a hora em que fazemos exercícios.

Como funciona a manipulação genética | BBC Video

Numa altura em que se tentam definir os limites (até onde se deve / pode manipular), a BBC explica como funciona:
http://www.bbc.com/news/health-34974369