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).
Singletary played on the best defense in Chicago Bears and NFL history and was the heart and soul of that defense. The middle linebacker has always an important position in the Bearâs defense and Singletary was the best middle linebacker that they have ever had.