上海呼吸科全国排名第一(上海rads3类甲状腺结节) (今日更新中)

The world’s population has been growing, spiking in the last few centuries, and now sits around 7.6 billion. A study published this week suggests global population will peak around the year 2064 at roughly 9.73 billion people.Researchers looking at the models believe the world’s population will then begin declining, reaching roughly 8.79 billion in the year 2100. Their reasoning for the decline is that “continued trends in female educational attainment and access to contraception will hasten declines in fertility and slow population growth.”According to the study, funded in part by the Bill and Melinda Gates Foundation and published in The Lancet, the five largest countries, population-wise, in 2100 are projected to be India, Nigeria, China, the U.S. and Pakistan. They are projecting America will have a population of roughly 336 million people in 2100. Currently, there are an estimated 331 million people living in the U.S.The average life expectancy in 2100 will be around 80 years old. The current global life expectancy is estimated at 72 years old. 1073

The recommended amount of sleep for adults is six to eight hours a night. Sleeping more than those hours is associated with an increased risk of death and cardiovascular diseases, says a global study published Wednesday in the European Heart Journal.Looking at data from 21 countries, across seven regions, the research team found that people sleeping more than the recommended upper limit of eight hours increased their risk of risk of major cardiovascular events, like stroke or heart failure, as well as death by up to 41%.But a possible reason for this could be that people have underlying conditions causing them to sleep longer, which in turn could raise the risk of cardiovascular disease or mortality, explain the authors of the study.The team, led by Chuangshi Wang, a Ph.D. student at McMaster and Peking Union Medical College in China, also identified a rising risk among daytime nappers."Daytime napping was associated with increased risks of major cardiovascular events and deaths in those with [more than] six hours of nighttime sleep but not in those sleeping [less than] 6 hours a night," Wang said.In those who underslept, "a daytime nap seemed to compensate for the lack of sleep at night and to mitigate the risks," Wang explained.Previous studies into this topic were mainly carried out in North America, Europe and Japan. The new study brings a global picture.But the findings are observational, meaning the cause of this association remains unknown."Even though the findings were very interesting they don't prove cause and effect," said Julie Ward, a senior cardiac nurse at the British Heart Foundation, who was not involved in the study.Having less sleep -- under six hours -- was also shown to increase these risks by 9%, compared with people who slept for the recommended six to eight hours, but this finding was not considered to be statistically significant by the team.In 2014, 35.2% of American adults reported not getting enough sleep with less than seven hours per night, according to the CDC. 2049

The US Food and Drug Administration expanded the list of drugs being recalled that contain valsartan. The drug is used as a component in a set of drugs used to treat heart failure and blood pressure.The FDA initially announced a valsartan recall in July after lab tests discovered that some drugs could have been tainted with a substance linked to higher risk of cancer. The drug had previously been recalled in 22 other countries. The expanded recall includes some drugs that contain valsartan and hydrochlorothisazide. Not all of the drugs containing valsartan were impacted.N-nitrosodimethylamine or NDMA, the impurity the lab tests found, is considered a possible carcinogen by the US Environmental Protection Agency. It is an organic chemical that has been used to make liquid rocket fuel, and can be unintentionally introduced through certain chemical reactions. It's a byproduct from the manufacturing of some pesticides and fish processing. 956

The White House does not appear to be making any changes to current virus protocol, even after President Donald Trump and the first lady tested positive for COVID-19.A senior White House official said Friday that masks will still not be mandatory at the White House, describing facial coverings as “a personal choice,” despite overwhelming evidence that they help to stop the spread.And the White House is not planning to move to a different, more reliable testing system after the one it uses failed to detect that adviser Hope Hicks had the virus the day she began experiencing symptoms.The president, his White House and his campaign have generally taken a lax approach to the pandemic, continuing to hold large events and failing to abide by social distancing recommendations.The official, who spoke on condition of anonymity to discuss internal White House thinking, defended the current system. 908

The Washington Post's executive editor condemned a robocall made during the U.S. Senate race in Alabama. "Hi, this is Bernie Bernstein," the caller says, according to The Hill. "I’m a reporter for The Washington Post calling to find out if anyone at this address is a female between the ages of 54 to 57 years old willing to make damaging remarks about candidate Roy Moore for a reward of between ,000 and ,000 dollars," says the caller. "We will not be fully investigating these claims. However, we will make a written report."The call comes after the Washington Post reported on four women accusing Republican candidate Roy Moore of pursuing them when the women were between the ages of 14 and 18. Moore was in his 30s at the time. In a later report, a fifth woman accused Moore of sexual misconduct.  835

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