sexta-feira, 31 de março de 2017

Surto de sarampo na Europa

Altamente contagioso, na Europa há já alguns países afectados, Portugal apela à vacinação:

http://www.dn.pt/sociedade/interior/surto-de-sarampo-na-europa-dgs-reforca-vacinacao-5760809.html (inclui infografia que mostra as 13 mortes em 2016 na Europa).

No RU (outra fonte):
https://www.thesun.co.uk/living/3203912/highly-contagious-measles-is-sweeping-through-europe-health-experts-warn/

quinta-feira, 30 de março de 2017

Hepatites B e C leva a disco acrescido de Parkinson

http://www.dailymail.co.uk/health/article-4362086/Hepatitis-B-C-linked-risk-Parkinson-s-disease.html

Citando:
'Contracting hepatitis B or C may increase your risk of, Parkinson's disease
- People with hepatitis B were 76 percent more likely to develop the disease
- The study also found people with hepatitis C were 51 percent more likely
- It may be because the virus attacks the nervous system after it leaves the liver'

Amendoins (sem sal) podem ajudar na elasticidade das artérias

http://www.express.co.uk/life-style/health/785486/peanuts-boost-heart-health-prevent-attack-stroke

Citando:
"The study, published in the Journal of Nutrition, showed eating peanuts can keep the cells that line the arteries healthy - helping them stay more elastic.

The researchers showed when peanuts are eaten with a meal the typical build-up of triglycerides - like cholesterol a type of fat found in the bloodstream - is dampened.

Professor Kris-Etherton said: "After a meal, triglycerides increase and this typically decreases the dilation of the arteries, but the peanuts prevent that big increase in triglycerides after the meal.

"And that may be the mechanism behind this effect, because the triglycerides are not getting so high, which may explain why there is not a decrease in artery elasticity.""

Relação ambiental e Alzheimer (alga na água)?

O marisco francês e o português parece conter a toxina (BMAA em Inglês) que está a ser associada ao aparecimento de Alzheimer:
http://www.express.co.uk/news/uk/637550/Alzheimer-s-scientists-cause-lurking-British-waters

Citando:
"A toxin produced by the blue-green algae, also being linked to motor neurone disease (MND), has been discovered in plants and seafood and scientists fear it is contaminating the food chain and triggering the devastating brain diseases. 

The algae, found in freshwater lakes and reservoirs throughout Britain, produces a toxin called BMAA, often as a by-product of its algal bloom. 

The brains of people who have suffered from Alzheimer's and MND were found to contain high levels of BMAA and monkeys given a diet rich in the toxin developed Alzheimer's-like symptoms in less than five months. 

If the link is confirmed between the toxin and humans, it would be the first major environmental factor linked to the increasing rate of Alzheimer's."
(...)
"Although a link to the food chain has not yet been established, seafood, including French mussels and oysters and Portuguese cockles grown in estuaries, have all been found to contain BMAA."
(...)
"Professor Cox said: "We think there is a gene-environment interaction. Perhaps some people are exposed to this toxin and, instead of excreting it, they accumulate it. If the genes are the gun, the toxin is the trigger."

They agreed more research was needed."

Relação de ELA (ALS) com exposição a radiação electromagnética

Estudo (observacional, amyotrophic lateral sclerosis):
https://www.newscientist.com/article/2126263-als-linked-to-occupational-exposure-to-electromagnetic-fields/

Citando:
"'Jobs with relatively highe extremely low frequency electromagnetic fields levels include electric line installers, welders, sewing-machine operators, and aircraft pilots, says Vermuelen. “These are essentially jobs where workers are placed in close proximity to appliances that use a lot of electricity.”

Causal link?

The team have stressed that this study is observational – it has not proven that the fields themselves cause ALS, just that this factor is linked to a person’s likelihood of developing the disease.

However, it provides the best evidence yet that magnetic fields could be to blame for the disease. “This study has much better information on exposure to magnetic fields than previous studies,” says Pearce. “It shows that the increased risk of ALS in electrical workers is most likely due to magnetic field exposure, rather than to electrical shocks.”

But Christian Holscher, at Lancaster University, UK, says the results should be interpreted with caution. “The effect of extremely low frequency magnetic fields on ALS development is not clear,” he says. The study only just crosses the threshold for statistical significance, and because only 82 people in the analysis developed the disease, the finding may well be a false positive, he says."

quarta-feira, 29 de março de 2017

Um banho quente faz tão bem como uma hora de exercício?

Um banho quente faz tão bem como uma hora de exercício?

How having a hot steamy BATH is 'as good for your health as an hour-long sweaty workout'

Citando:
"Having a hot steamy BATH is ‘as good for your health as an hour-long sweaty workout’:

A relaxing bath can help lower blood sugar levels, and reduce disease-causing inflammation, experts have revealed"
(...)
"But, peak sugar level after eating was actually found to be 10 per cent lower in the participants who had a bath, compared with those who exercised.

Lead author Steve Faulkner wrote on The Conversation: “It seems that activities that increase heat shock proteins may help to improve blood sugar control and offer an alternative to exercise.

“These activities – such as soaking in a hot tub or taking a sauna – may have health benefits for people who are unable to exercise regularly."

Arroz e intoxicações alimentares?

O arroz (segundo o NHS) deve ser devidamente guardado e reaquecido apenas uma vez:
http://www.independent.co.uk/life-style/reheat-leftover-rice-food-poisoning-a7655816.html

Citando:
"So uncooked rice often contains spores (cells capable of reproducing quickly) of Bacillus cereus — a bacteria strand that can cause food poisoning — that can survive when rice is cooked.

And if the rice is left standing at room temperature after it's been boiled, the spores can grow into bacteria, which will ultimately multiply and may produce toxins that cause vomiting or diarrhea.

The longer cooked rice is left at room temperature, the more likely it is that the bacteria will make the rice unsafe to eat — meaning it's vital that you store your rice at the right way quickly if you're hoping to reheat it later.

So, how do you increase the chances of avoiding food poisoning all together? First off, serve rice as soon as it's been cooked, and cool any leftovers as quickly as possible. The NHS recommends within an hour, ideally. You can then keep the rice in the fridge (but for no more than one day) before reheating."