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Their youthful brains were developing normally, with no signs of developmental, psychological or neurological problems. None had ever had a concussion. But by the end of a single football season, 24 children between the ages of 9 and 18 who had more frequent impacts to the head showed signs of damage to brain development, new research says."Repetitive head impact exposure may have a cumulative effect in the rapidly developing brains of youth and high school football players," said study co-author Gowtham Krishnan Murugesan, a radiology research assistant at UT Southwestern Medical Center in Dallas, adding that the results mirror other recent findings.The study outfitted 60 youth and high school football players who had no history of head trauma or developmental issues with a head impact telemetry system that measures the magnitude, location and direction of impacts to the head. The researchers were not looking at whether the impact resulted in a concussion, only that impact occurred.The children were sorted into two categories: high cumulative head impact players (24) and low cumulative head impact players (36).Before beginning to play, each child had a resting state functional scan, known as an fMRI; the scans were repeated at the end of football season. The researchers were trying to see how exposure to repetitive hits affects the normal "pruning" process in the brain that occurs during adolescence."Pruning is an essential part of brain development," Murugesan said, comparing the process to how a tree needs to have dead or unneeded branches cut to keep it healthy and allow it to grow."Disruption in normal pruning has been shown to be related to weaker connections between different parts of the brain," he said.After comparing the functional MRI results to the player's level of impact, the researchers found that youth in the high-impact group had damage to their brains' pruning process after one season."Our study has found a significant decrease in gray matter pruning in the frontal default mode network, which is involved in higher cognitive functions, such as the planning and controlling of social behaviors, " Murugesan said.Although the "teenage years are a critical time for brain development, brain remodeling or synaptic pruning, this was a short-term study and did not follow the players longitudinally over several years. We don't really know the full application," said Dr. Julian Bailes, director of neurosurgery and co-director of the NorthShore University HealthSystem Neurological Institute, who was not involved in the research.Weill Cornell neurologist Dr. Richard Isaacson, who was also not involved in the study, called the research "early" and said the results don't necessarily "translate to a clinical or cognitive outcome." More research is needed to see whether the decline in brain pruning permanently affected the child's cognitive function or whether the brain's natural plasticity allowed it to repair itself."I would call this a pilot study," Isaacson said. "The call to action would be that we need more robust longitudinal studies with a pre- and a post-assessment of more than brain imaging. The study should also measure cognitive and neurological function and look for changes."As we learn more about the issue, Isaacson said, parents should do everything they can to limit contact in sports, "especially in practice before games, where studies show the majority of contact occurs." 3464

Today, millions of Americans who didn't have high blood pressure before have it now. This is the first time the definition for hypertension has changed in 14 years. Now 103 million people will have high blood pressure.Based on new guidelines from the American Heart Association and other health groups, 130 over 80 is the number that means you have high blood pressure. That reading has historically been considered normal. But now, it's stage 1 hypertension, and it means 46 percent of U.S. adults, many of them under the age of 45, have the disease."So do people need to run out and get medication right now? The short answer is no," Dr. Sam Aznaurov, cardiologist at Presbyterian/St. Luke's Medical Center, said.Dr. Aznaurov said the only way people in this range would have to start medication is if they have another underlying cardiac disease. Your risk doesn't change either. Instead, it's a wake up call. ""I'm looking at this as more of the start of a formal conversation," Dr. Aznaurov says. "Saying, 'Hey maybe you should get a blood pressure cuff at home and start monitoring that blood pressure and bring in those numbers for us to review together at your next visit.'"The lower score is expected to triple the number of younger men considered hypertensive and double the number of younger women with high blood pressure. So if not medication, what can you do? Doctors say make lifestyle changes. For starters, cutting back on salt, carbs, tobacco and alcohol.Dr. Aznaurov says, "It's weight loss, exercise. It's getting plenty of sleep. It's treating underlying related conditions." If successful, the study's authors say these things can significantly lower your numbers, and risk of heart attack and stroke."The bottom line is that yeah we really do really see visible results with those changes," Dr. Aznaurov says.Under the new guidelines normal blood pressure will be considered anything less than 120 over 80. 1962

TIJUANA, Mexico (KGTV) -- A tiger and panther cub pair was seized at the Tijuana Airport Tuesday.Both animals are safe an in custody. Officials say the cubs were found inside a wooden box with no documentation.Both were sent from the State of Mexico, but officials say their final destination is unclear.RELATED:  331

There are 88 national park forests in the US you could choose from that would allow you to cut your own Christmas tree.And all you need is a Christmas tree cutting permit.According to the U.S. Forest Service, visitors need a Forest Service-issued permit, which is available for purchase on the Recreation.gov website or at local offices.According to a press release, the Forest Service began selling permits in a "modernize" way on Oct. 15, as a way to minimize in-person interaction during the coronavirus pandemic.The program, the agency said, is also good for the forest."The Christmas tree permit program is also a tool used in thinning dense, unhealthy stands of trees," the agency stated in an October press release. "Forest health experts help identify areas where Christmas trees can be cut, opening up forage for wildlife and allowing the remaining trees to grow larger."According to the Forest Service, there are specific guidelines to follow, including having your permit on you at all times. You'll also need to contact the forest district office nearest you for cutting instructions.The permits will set you back between to , varying by location. 1173

These horrible & politically charged decisions coming out of the Supreme Court are shotgun blasts into the face of people that are proud to call themselves Republicans or Conservatives. We need more Justices or we will lose our 2nd. Amendment & everything else. Vote Trump 2020!— Donald J. Trump (@realDonaldTrump) June 18, 2020 344