The single-gene mutations directly responsible for early-onset Alzheimer's disease do not seem to be involved in late-onset Alzheimer's, and researchers have not found a specific gene that causes the late-onset form of the disease.
The NFLâs worst defense in 2015 are expected to be the Atlanta Falcons, Jacksonville Jaguars, Tennessee Titans, Chicago Bears and Tampa Bay Buccaneers (not necessarily in that order).
NFL Defense Stats 2015. See the latest NFL team defense stats and rankings for the 2015 football season. Statistics display the best NFL teams against the run and pass. Also see: 2016 Super Bowl Odds | Expert NFL Picks.