Light jogging may be the best exercise for a longer life

A new study of almost 10,000 teenagers finds the longer they spend on their electronic devices during the day, the worse their sleep will be that night. Researchers in Norway say teens who spent more than 4 hours a day on their electronics were nearly 50 percent more likely to need more than an hour to fall asleep. More than 2 hours of electronics after school was linked to shorter sleep. SOURCE – BMJ Open /MedDay/CBS

Breast cancer
Not all women whose breast cancer has spread to their lymph nodes need to have all of their underarm nodes removed. That’s the finding of a new study from the Mayo Clinic. Researchers say repeating an ultrasound after a patient undergoes chemotherapy can help determine which nodes need to be taken out. In the past, it was standard to remove ALL the lymph nodes, but that could cause arm swelling and limit the arm’s range of motion. SOURCE – Journal of Clinical Oncology /MedDay/CBS

Jogging
Jogging in small quantities may be the key to long life. Researchers in Denmark found light joggers had the lowest rates of death while strenuous joggers were just as likely to die as healthy but non-active adults. Researchers found joggers who exercised no more than 3 times a week at a slow or moderate pace had the lowest mortality. SOURCE – Journal of the American College of Cardiology /MedDay/CBS

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