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Sticking to a normal daily rhythm -- being active during the day and sleeping at night -- can have more benefits than you might expect.A new study found that it is linked to improvements in mood and cognitive functioning as well as a decreased likelihood of developing major depression and bipolar disorder.The study, published Tuesday in the journal The Lancet Psychiatry, looked at disruptions in the circadian rhythms -- or daily sleep-wake cycles -- of over 91,000 adults in the United Kingdom. It measured these disruptions using a device called an accelerometer that is worn on the wrist and measures one's daily activity levels. The participants were taken from the UK Biobank, a large cohort of over half a million UK adults ages 37 to 73.The researchers found that individuals with more circadian rhythm disruptions -- defined as increased activity at night, decreased activity during the day or both -- were significantly more likely to have symptoms consistent with bipolar disorder or major depression. They were also more likely to have decreased feelings of well-being and to have reduced cognitive functioning, based on a computer-generated reaction time test.For all participants, activity levels were measured over a seven-day period in either 2013 or 2014, and mental health proxies such as mood and cognitive functioning were measured using an online mental health questionnaire that participants filled out in 2016 or 2017."It's widely known that a good night's sleep is a good thing for well-being and health. That's not a big surprise," said?Dr. Daniel Smith, professor of psychiatry at the University of Glasgow and a leading author on the study. "But I think what's less well-known and what comes out of this work is that not only is a good night's sleep important, but having a regular rhythm of being active in daylight and inactive in darkness over time is important for mental well-being."The findings were found to be consistent even when controlling for a number of influential factors including age, sex, lifestyle, education and body mass index, according to Smith."I think one of the striking things that we found was just the consistency in the direction of our association across everything we looked at in terms of mental health," Smith said.Daily circadian rhythm is controlled by a collection of neurons in an area of the brain called the hypothalamus. The hypothalamus helps regulate a number of important behavioral and physiological functions such as body temperature, eating and drinking habits, emotional well-being and sleep, according to the?National Institute of General Medical Sciences.The findings are consistent with research indicating a link between sleep disruptions and mood disorders. A 2009 study, for example, showed that men who worked night shifts for four years or more were more likely to have anxiety and depression than those who work during the day.However, the new study is the first to use objective measurements of daily activity and is among the largest of its kind, according to?Aiden Doherty, senior research fellow at the University of Oxford, who was not involved in the research."This study is the first large-scale investigation of the association of objectively measured circadian rhythmicity with various mental health, well-being, personality and cognitive outcomes, with an unprecedented sample size of more than 90 000 participants," Doherty wrote in an email."Previous studies have been very small (in just a few hundred people), or relied on self-report measures (asking people what they think they do). ... However, this study used objective device-based measures in over 90,000 participants; and then linked this information to standard measures of mood disorders, subjective well-being, and cognitive function," he added.The findings have significant public health consequences, particularly for those who live in urban areas, where circadian rhythms are often disrupted due to artificial light, according to Smith."By 2030, two-thirds of the world's population will be living in cities, and we know that living in an urban environment can be pretty toxic to your circadian system because of all the artificial light that you're exposed to," Smith said."So we need to think about ways to help people tune in to their natural rhythms of activity and sleeping more effectively. Hopefully, that will protect a lot of people from mood disorders."For those who struggle to maintain a consistent circadian rhythm, certain strategies -- such as avoiding technology at night -- have proven to be an important part of good sleep hygiene."Not using your phone late at night and having a regular pattern of sleeping is really important," Smith said. "But equally important is a pattern of exposing yourself to sunshine and daylight in the morning and doing activity in the morning or midday so you can actually sleep properly."Based on the observational nature of the study, the researchers were unable to show causality, meaning it is unclear whether the sleep disturbances caused the mental health problems or vice versa."It's a cross-sectional study, so we can't say anything about cause and effect or what came first, the mood disorder or the circadian disruption," said Kristen Knutson, associate professor of neurology at Northwestern's Feinberg School of Medicine, who was not involved in the study."And it's likely they affect each other in a circular fashion," she added.The researchers also looked exclusively at adults between age 37 and 73, meaning the results may not apply to younger individuals, whose circadian rhythms are known to be different than those of older adults, according to Smith."The circadian system changes throughout life. If you've got kids, you know that very young kids tend to be nocturnal," Smith said. "My suspicion is that we might observe even more pronounced effects in younger samples, but that hasn't been done yet, to my knowledge."But the study adds more credence to the idea that sleep hygiene -- including maintaining a consistent pattern of sleep and wake cycles -- may be an important component of good mental health, according to Smith."It's an exciting time for this kind of research because it's beginning to have some real-world applications," Smith said. "And from my point of view as a psychiatrist, I think it's probably under-recognized in psychiatry how important healthy circadian function is, but it's an area that we're trying to develop." 6496

Surveillance footage obtained from a Las Vegas phone store shows video shows an iPhone exploding on a desk while an employee sat just a couple feet away.The employee quickly jumped up to get help as the phone burned itself out on the desk in less than 20 seconds.The phone screen was being replaced after it cracked due to heat damage as the battery expanded.The store is not being identified.Paul Tartaglio owns Gadget Repair. While it wasn't his shop, he says he has seen badly damaged batteries due to heat in the Las Vegas desert.He has seen a phone explode before but "It takes a lot for it to explode."The biggest issue he sees the temperatures rise into the triple digits in Las Vegas are the cracked screens from warped batteries. "Over time, the batteries heat up and bloat," Tartaglio said. "The problem is when it bloats up just a little bit, it can cause your screen to crack a lot easier."While he says it's extremely difficult to predict when a battery could explode, Tartaglio said the key is to keep phones out of direct sunlight during the summer.Not only can it lead to explosions in extreme cases, but it can also shorten the life of the battery —especially after the phone issues a temperature warning a few times.Smart phone users should also avoid overcharging devices, which can generate extra heat in the battery.Tartaglio also recommends people use replacement batteries directly from the phone's manufacturer, saying they are often more reliable than aftermarket batteries and typically aren't any more expensive. 1597

TAMPA, Fla. — It's often called the most wonderful time of the year. With Christmas just 10 days away, public health experts are urging families to be cautious around the holiday to help prevent the spread of COVID-19.“If people interpret the vaccine being here as an opportunity to lower their guard, then, unfortunately, we’re going to see more sorrow and death, and those are all preventable,” said USF Health professor Dr. Marissa Levine.Since the Thanksgiving holiday, we’ve recently seen an upward trend in COVID-19 cases in the Tampa Bay area. Dr. Levine points to an increase in hospitalizations, too, though not as steep of an increase as what we saw this summer.“This is happening with Christmas and New Year’s just around the corner, so all bets are off in terms of what happens after that,” said Levine. “That will really depend on what we do between now and the beginning of January.”The CDC says celebrating the holiday virtually or with people you live with poses the lowest risk for spread. It says getting together with family and friends who don’t live with you can increase the chances of getting or spreading COVID-19.If you are having a small gathering, the CDC suggests limiting the number of people, hosting outdoors rather than indoors, and having supplies like extra masks available. If inside, experts recommend opening windows and doors to increase ventilation. “I would really push people to do everything possible to try to keep your distance, and if you can’t, wear your face coverings all the time that you’re not eating,” said Levine.The CDC also says people who have COVID symptoms, are waiting on test results, or are at an increased risk of severe illness should not go to an in-person celebration. If you travel, the CDC says testing does not eliminate all risk, but it can help make travel safer. Still, it says the safest thing to do is to stay home.“I think the real message here is there’s hope. There’s lots of hope ahead. I’m hoping that we’re at the beginning of the end, but the beginning of the end does not mean we can let our guard down,” said Dr. Levine. “In fact, we’re probably going to have to really push to do physical distancing, face masks, and handwashing for a number of months into the future.”This story was first reported by Mary O'Connell at WFTS in Tampa Bay, Florida. 2338

The Associated Press has obtained text messages that a U.S. Census Bureau supervisor in Alabama sent to workers that told them how to fake counts of households by entering misleading data.According to the AP's report, texts from the supervisor in October laid out how census takers should fake data to mark a household as only having one resident, even if census takers were unsure of how many people lived in the home.The supervisor's text instructed census takers to mark a household as only being occupied by a single person if they made two failed attempts to interview the residents and two failed attempts to reach landlords or neighbors."You are to clear the case indicating occupied by 1," said the text from the census supervisor in Dothan, Alabama.A census worker from Florida who traveled to Alabama to help with areas lagging behind on the county provided the texts to the AP on condition of anonymity to protect her privacy.The Census Bureau says it's investigating and hasn't identified any data irregularities.The attempts to suppress the population count came as Trump administration officials successfully shortened the Census schedule by two weeks. Critics contend that the count was cut short so the Trump administration could enforce an order to exclude undocumented immigrants from the count.Under-counting a given area in the Census suppresses the allocation of resources to that area and skews congressional districts.The Associated Press reports the Census Bureau has denied that it attempted to falsify information during the 2020 census, but the AP has reported that similar instructions were sent to other regions. 1649

TEMPE, Ariz. — An Arizona woman said a man posing as a Lyft driver tried luring her into his car. Around 9 p.m. Saturday, Bradie Trippi was waiting to be picked up in a parking lot in Tempe, Arizona. The Lyft app showed her driver was a minute away when a man in a gold Infiniti sedan pulled up next to her, she said. “He says, ‘I’m your Lyft’ and then took a phone, flashed it in my face,” Trippi told KNXV. She said the man showed her the passenger app — not the driver app — and the letter “f” of the “Lyft” emblem on his car was backward. Given the fact the man did not match the photo of her driver or description of her driver’s car, Trippi declined to get in the car. “He got aggressive,” she said. “Told me to get in the car, he’s gonna kill me, called me the ‘b word’, started yelling the ‘f word’ at me — I got kind of scared.”When her actual Lyft driver arrived, Trippi said the man sped off. Lyft and Uber spokespeople told KNXV that passengers should always check to make sure the photo of their driver, description of the vehicle and license plate match up before getting inside. Passengers should ask open-ended questions to their driver, like “who are you here to pick up?” Instead of “Are you here to pick up [name]?”Trippi and her actual Lyft driver described the imposter driver as a bald, African-American man with an accent. Tempe police said there have been no other recent reports matching that description.  1479

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