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Love to cross-country ski? Well, all those days spent striding across the snow-covered wilderness may do more than keep you in great physical shape. Swedish researchers report that very fit long-distance skiers were about 30% less likely to develop Parkinson’s disease during their 20-year study. The research suggests that any activity that keeps you fit might buffer the brain against disease. “Our study highlights the importance of staying physically active throughout life, in order to have a reserve to better cope when the frailties and diseases of old age inevitably arrive,” said study senior author Tomas Deierborg. He’s an associate professor in neuroscience at Lund University in Sweden. Deierborg said the researchers believe these very fit athletes have built up a greater “motor reserve” that slows any brain damage from Parkinson’s disease. He said it’s similar to the idea of “cognitive reserve” in people with dementia that suggests someone who is well-educated can sustain more brain damage from dementia before symptoms of the disorder become obvious. However, not everyone is convinced that motor reserve is playing a role in this study’s findings. Dr. Michael Okun, national medical director for the Parkinson’s Foundation, said, “There’s definite agreement among experts that exercise has positive effects on Parkinson’s disease and many positive effects beyond Parkinson’s disease. But it’s wishful thinking for us to assume that long-distance skiers have… read on >

The number of new COVID-19 coronavirus cases in China dropped Thursday, but the decline might just be due to new methods in how case numbers are tallied. Also on Thursday, two infected passengers from the Diamond Princess cruise ship that had been quarantined in Japan died. The decline in Chinese cases was due in part to Chinese health officials again changing how they tally infections. Now, they are discounting patients whose lab tests come back negative and they are refining how they first assess sick patients, the Associated Press reported. Under the new system, 394 new cases of COVID-19 were confirmed Thursday while 279 were discounted, the wire service said. There have now been a total of 74,576 cases and 2,118 deaths in mainland China. The two cruise ship passengers who died were an elderly Japanese couple who had been hospitalized during the quarantine, the AP reported. The ship’s quarantine ended Wednesday. Among the 400 Americans who were on board that same cruise ship, roughly 300 Americans were evacuated over the weekend and are under quarantine in the United States. At least 14 of those evacuees have tested positive for the new COVID-19 virus. More than 100 American passengers remain in Japan, however, and U.S. health officials announced Tuesday that they will not be allowed to return home for at least two more weeks. According… read on >

Many U.S. teenagers may be using their smartphones to harass, humiliate or otherwise abuse their dating partners. That’s according to a recent national survey of teens who’d been in a romantic relationship in the past year. Researchers found that 28% had been victims of “digital dating abuse” — surprisingly, with boys being targets more often than girls. While teen dating abuse has long been a problem, digital technology has opened up new ways for it to happen, according to lead researcher Sameer Hinduja, co-director of the Cyberbullying Research Center and a professor of criminology at Florida Atlantic University. Teens might send threats by text; make embarrassing posts on social media; publicly share private, sometimes sexual, pictures; or secretly look through a partner’s device to monitor him or her. The new findings, from a nationally representative survey, give a better sense of how common the problem is among U.S. teens, Hinduja said. “This helps clarify what’s going on with youth who are in romantic relationships,” he said. “Many teenagers,” Hinduja said, “really don’t know what they’re doing when it comes to building healthy relationships.” Digital dating abuse is generally not an isolated issue: Many teens in the study (36%) said they’d been abused offline — physically, verbally or through coercive, controlling behavior. And it often went hand-in-hand with digital abuse. That’s not surprising, according to Hinduja,… read on >

As the number of coronavirus cases reached 75,000 and deaths topped 2,000, a two-week quarantine of a cruise ship docked in Japan ended Wednesday. About 300 Americans were recently evacuated from the Diamond Princess over the weekend and are already under quarantine in the United States. Fourteen of those evacuees have tested positive for the new COVID-19 virus. More than 100 American passengers still remain in Japan, however, and U.S. health officials announced Tuesday that they will not be allowed to return home for at least two more weeks. According to a statement from the U.S. Centers for Disease Control and Prevention, containment measures that were taken on the ship “may not have been sufficient to prevent transmission. [The] CDC believes the rate of new infections on board, especially among those without symptoms, represents an ongoing risk.” Passengers who stayed on the ship will not be allowed to return to the United States until they have been off the ship for 14 days, without any symptoms or a positive test for the virus, the agency added. The ruling also applies to Americans who are hospitalized in Japan. In some good news, details released on nearly 45,000 cases of coronavirus in China show that 80% of cases are mild and the number of new cases has been declining for most of February. The report, released Monday… read on >

A key to your baby’s asthma risk may be as close as your laundry room. Canadian research shows that an infant’s exposure to household cleaning products in the first few months of life is tied to heightened odds for asthma by age 3. Babies may be especially vulnerable because they “typically spend 80% to 90% of their time indoors, and are especially vulnerable to chemical exposures through the lungs and skin due to their higher respiration rates and regular contact with household surfaces,” according to study lead researcher Tim Takaro. He’s a physician-scientist in the faculty of health sciences at Simon Fraser University in Burnaby, British Columbia. In their research, Takaro’s group examined questionnaires completed by parents of more than 2,000 children who were exposed to household cleaning products from birth up to 4 months of age. The children were assessed at 3 years of age for asthma, recurrent wheeze and “allergic sensitization.” The study couldn’t prove cause and effect, but the researchers reported that babies with the highest levels of exposure to cleaning products had a 37% rise in their risk of being diagnosed with asthma by 3 years of age. These babies also had a 35% higher risk of developing recurrent wheezing by the same age. The most common household cleaning products parents reported using were hand dishwashing soap, dishwasher detergent, multisurface cleaners,… read on >

Little ones who stay up late may have a higher risk of becoming overweight by the time they are school-age, a new study suggests. Researchers found that young children who routinely got to sleep after 9 p.m. tended to gain more body fat between the ages of 2 and 6. Compared with kids who had earlier bedtimes, they had bigger increases in both waist size and body mass index (BMI) — an estimate of body fat based on height and weight. The findings do not prove that later bedtimes cause excess weight gain, said Dr. Nicole Glaser, who wrote a commentary accompanying the study, which was published online Feb. 18 in Pediatrics. But the report adds to evidence linking sleep habits to kids’ weight, according to Glaser, a pediatric endocrinologist at the University of California, Davis. Specifically, studies have found higher rates of obesity among kids who either get too little sleep or have trouble falling or staying asleep. “At this point, I think it’s clear that there is a relationship between [sleep quality and obesity risk],” Glaser said. “The big question is whether the relationship is a causal one.” Dr. Claude Marcus, senior researcher on the study, agreed. “The causality is difficult to establish,” he said. Kids’ sleep habits do not exist in a vacuum, and it’s possible that other factors cause both late… read on >

New details on nearly 45,000 cases of COVID-19 coronavirus in China show that 80% of cases are mild and the number of new cases has been declining for most of February. The report, released Monday by the Chinese Center for Disease Control and Prevention, offer some hope that the outbreak might be abating, the Associated Press reported. Still, “it’s too early to tell if this reported decline will continue. Every scenario is still on the table,” Tedros Adhanom Ghebreyesus, director of the World Health Organization, said during a media briefing Monday. Among the cases studied in the Chinese report, 14% developed pneumonia and 5% developed critical illness. The fatality rate has been 2.3% — 2.8% for males and 1.7% for females. Health care workers have high exposures to COVID-19, and the AP reported that another Chinese doctor on the front lines of fighting the virus has died Tuesday from complications tied to the illness. Liu Zhiming directed the Wuchang hospital in Wuhan, the epicenter of the outbreak. The 51-year-old is the eighth health care worker to die of the disease, the Washington Post noted. On Tuesday, the case count in mainland China reached 72,436, while the number of deaths hit 1,868, the AP reported. Outside China, 14 of the more than 300 U.S. passengers evacuated from a cruise ship hit by the coronavirus outbreak tested… read on >

MONDAY, Feb. 17, 2020 (American Heart Association News) — Bleeding strokes are the deadliest type of stroke and the hardest to treat. What might make matters worse is having both diabetes and Alzheimer’s disease versus either condition alone, new research shows. The study looked at 2,071 adults in the Kentucky Appalachian Stroke Registry who had a hemorrhagic stroke. The researchers reviewed each patient’s health records to look for a previous diagnosis of diabetes or Alzheimer’s disease. They found 75% of those with both conditions had died or needed hospice or long-term care after their stroke compared to 39% with neither condition, 42% with diabetes alone, and 62% with Alzheimer’s disease alone. This stroke registry gave us “the opportunity to think about how having more than one (health condition), like diabetes and Alzheimer’s disease, could influence outcomes compared to having just one,” said the study’s lead researcher Amanda L. Trout, a scientist at the Center for Advanced Translational Stroke Science at the University of Kentucky in Lexington. Trout will present the preliminary study Wednesday at the American Stroke Association’s International Stroke Conference in Los Angeles. Diabetes occurs when a person’s blood sugar is too high. The condition increases risk for stroke, heart disease and other health problems. Likewise, previous studies suggest stroke risk is higher for people with Alzheimer’s disease, a brain disorder that slowly erases… read on >

Fourteen of the more than 300 U.S. passengers evacuated from a cruise ship hit by the coronavirus outbreak have tested positive for infection during their flights home, U.S. health officials said Monday. The news comes from a joint statement from the Departments of State and Health and Human Services, CNN reported. The 14 passengers aboard the Diamond Princess, docked in Yokohama, Japan, tested positive for the new COVID-19 virus during the disembarkation process, officials said. They were part of an evacuation process involving two flights back to military bases in the United States. “After consultation with HHS officials, including experts from the HHS Office of the Assistant Secretary for Preparedness and Response, the State Department made the decision to allow the 14 individuals, who were in isolation, separated from other passengers, and continued to be asymptomatic, to remain on the aircraft to complete the evacuation process,” the agencies said in the news release. One of the flights landed at Travis Air Force Base near Fairfield, California, around 11:28 p.m. local time Sunday, while the other arrived at Joint Base San Antonio-Lackland in San Antonio, Texas at 3:56 a.m. local time Monday, CNN reported. All of the passengers aboard the two flights are being closely monitored, the government statement said, and “any who become symptomatic will be moved to the specialized containment area, where they will… read on >

Going solo when trying to quit smoking isn’t enough, one lung health expert says. “Smokers develop a physiological dependence on nicotine, and they need more than willpower to quit,” said Dr. Danish Ahmad, a pulmonologist with Penn State Health’s Milton S. Hershey Medical Center. The American Cancer Society says that smokers typically try quitting eight to 10 times before succeeding. That may sound daunting, but there’s good news. According to Diane Schmeck, a certified tobacco treatment specialist at Penn State Health, “The more times people try to quit, the more successful they might be the next time.” Though about 70% of smokers know they want to quit, particularly to avoid lung cancer and cardiovascular disease, there are many lesser known health risks. Smoking can cause cancer of the esophagus, pancreas and stomach, as well as breathing issues that can lead to emphysema. “Smoking affects your small blood vessels, which can mean poor circulation in the arms or legs, or a greater risk of erectile dysfunction in males,” Schmeck said in a Penn State Health news release. But if you quit, benefits can be seen immediately, Ahmad said. “Within 20 minutes, a smoker’s heart rate and blood pressure improves, and within 12 hours, the carbon monoxide level drops,” he said. Smokers have the highest likelihood of quitting through programs integrating one-on-one counseling, group support and medication,… read on >

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All Sauce from Weekly Gravy:

Skiers Study Suggests Fitness May Stave Off Parkinson’s

New China Coronavirus Cases Decline, 2 Passengers From Affected Cruise Ship Die

Texting Trauma: Many Teens Suffer ‘Digital Dating Abuse’

Quarantine Ends on Cruise Ship in Japan as Coronavirus Cases Near 75,000

Babies’ Exposure to Household Cleaning Products Tied to Later Asthma Risk

Late Bedtimes in Preschool Years Could Bring Weight Gain

Chinese Report Says Lion’s Share of Coronavirus Cases Are Mild

AHA News: Diabetes, Alzheimer’s Together Might Increase Stroke Severity

14 Americans From Cruise Ship Hit By Coronavirus Test Positive for Infection

Don’t Try to Kick the Smoking Habit Alone

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