安康什么引起月经推迟(安康次容易怀孕吗) (今日更新中)

Bill Nye the Science Guy has returned to his roots of explaining scientific concepts, but on a different platform – TikTok.On Thursday, the former TV show host posted two videos on the platform, which is mostly used by younger people, to demonstrate why the public should wear masks to prevent the spread of the novel coronavirus.In his first video, Nye starts by explaining why people in the scientific community want you to wear face coverings when you’re out in public.“Face masks, like this one, prevent particles from my respiratory system from getting into the air and then into your respiratory system,” said Nye. “Blocking the movement of air is an old trick.”Nye then demonstrates how scarfs can block the movement of air to keep our necks warm, but they don’t block air enough to stop his breath from blowing out a candle.Afterwards, Nye brings out a homemade face mask with two layers of cloth and a pipe cleaner. Although the mask is simple, Nye says it “blocks the movement of air very effectively.” He tries to blow the candle out with the mask over his face, but he can’t.“If you’re wearing one of these, you’re protecting yourself and those around you,” said Nye. @billnye ##WearAMask ##LearnOnTikTok ##TikTokPartner? original sound - billnye In his second video, Nye brings out an N95 mask, which are used to block particles in the medical community and by those cutting their lawns. He tries to blow the candle out again and it’s even more effective than the cloth face mask.“So, the reason we want you to wear a mask is to protect you, sure, but the main reason we want you to wear a mask is to protect me, from you, and the particles from your respiratory system from getting into my respiratory system,” said Nye. “Everybody, this is a matter, literally, of life and death. And when I use the word literally, I mean literally.”“So, when you’re out in public, please where a mask,” Nye ends. @billnye ##WearAMask ##LearnOnTikTok ##TikTokPartner? original sound - billnye Nye isn’t the only one advocating for face coverings. The Centers for Disease Control and Prevention (CDC) and other public health officials are also asking Americans to wear masks in public to help slow the spread of COVID-19, which has killed more than 133,000 people in the U.S. and the cases are continuing to grow.A growing list of states are actually requiring residents to wear face coverings before leaving their homes. 2434

Brewing beer can be back breaking labor.Every day, while working at Living Waters Brewing in East Nashville, Thomas Becker lifts heavy bags of grain and kegs of beer. He says the constant physical grind is taking a toll on his body.“It hurts. It hurts a lot,” Becker said. “Sometimes I’ve had some days it’s hard just getting into the car after work.”Now, relief might be found right next-door at a HeroWear, a startup that designed an exosuit to literally take weight off people’s backs.“With a simple press of the button, you’re able to engage the assistance,” said Karl Zelik, Ph.D., an engineering professor at Vanderbilt University who is now the chief scientific officer of HeroWear, a new company with a mission of creating exoskeleton technology for everyone.“We’re simply taking advantage of the laws of physics to help reduce some of the strain on your back,” Zelik said of his team’s back-assist exosuit, which is designed for people in physically demanding jobs.The suit is like wearing a small backpack and some leg compression shorts, except when you bend down, it takes strain off a person’s back. There are versions designed for men and women.“There are elastic bands that are located along your back,” Zelik said. “When you bend down, instead of all of the strain going through your back muscles, some of that strain gets offloaded and goes through these elastic bands instead.”According to health experts, nearly 80% of Americans will suffer from back pain at some point during their lifetime. And while a new study by HeroWear shows this exosuit can cut down on back fatigue by up to 40%, spine specialists have some questions.“It is quite a contraption,” said William J. Lauretti, DC, a professor of chiropractic clinical sciences at New York Chiropractic College. “So, I couldn’t imagine working a whole day wearing it.”Lauretti says some of the alleged benefits of this exosuit could, in reality, be the result of a placebo effect.“If you’re wearing something like that,” he said, “ I think you’re more likely to be a little more cautious about what you do just because you’re wearing this big thing.”The exosuit costs ,200. For people in physically demanding jobs like Becker, the benefits are real.“It feels like when you bend down,” he said, “when you start to stand up, somebody is helping you stand up.”Becker added you can’t put a price tag on pain relief.“Definitely worth investing in,” he said. “Because this is me taking care of myself and taking care of my back for the future. Making sure I’m not going to be in pain long-term.” 2572

BIG BEAR LAKES, Calif. (KGTV) — Big Bear's most popular bird is expecting another baby, as the area's nesting bald eagle laid her second egg last week.The female eagle has been nesting an egg since last Wednesday before a second one arrived last week, according to ABC-affiliate KABC.A camera installed by the group Friends of Big Bear Valley has kept interested bird watchers in the know: live streaming the eagle as it waits for its eggs to hatch.So when can viewers expect to see the new babies? The eaglets should hatch in early to mid April if everything goes well, according to KABC.Check out the live stream of the nest here: 640

BROWARD COUNTY, Fla. - Two brothers who share the same last name, now share a rap sheet in Broward County for crimes committed on the same high school campus.FULL COVERAGE: Parkland school shootingZachary Cruz, 18, who currently lives in Palm Beach County, was arrested by deputies on Monday for trespassing on Marjory Stoneman Douglas High School’s campus. Cruz is the younger brother of the accused Stoneman Douglas gunman, Nikolas Cruz, who was charged with 17 counts of murder after allegedly shooting and killing staff and students on Valentine’s Day. 564

Before you dip and indulge in chips and salsa this weekend in honor of Cinco de Mayo, check your chips.Utz, a Pennsylvania-based chip and snack food company, is recalling some of its tortilla chips because they may contain milk (not listed in the ingredients).Utz Quality Foods announced the voluntarily recall Thursday.The recall includes of some of its Golden Flake, Good Health, Utz and Weis brand tortilla chip products.The items have been shipped to 31 states and the District of Columbia, including Florida, according to the FDA. Read more about the recall here.Eating the chips could lead to serious or life-threatening reactions to people with dairy allergies.Anyone who purchased the chips can return them for a refund of exchange. 753

来源：资阳报