Americans Sit Way Too Much, But Exercise May Help
In the U.S., total sitting time from 2007 to 2016 rose by about an hour a day, to 8.2 hours for teens and 6.4 hours for adults

Gene Therapy Restores Immunity for ‘Bubble Boys’
A team of scientists say they have treated 10 "Bubble Boy' babies born with the disease called X-linked combined severe immunodeficiency, or SCID-X1, using a combination of gene therapy and chemotherapy.