Use of metformin is not associated with insomnia. In addition, a long-term study of people with Type 2 diabetes treated soon after diagnosis with metformin showed a lowered risk of death, heart attack, and vascular problems; whether these benefits extend to everyone who takes it is not known. 5. TRUE.
Afro-Eurasia is the largest land mass on Earth. It is the combine super continent of Asia, Africa, and Europe.
At 836,109 sq mi ( 2,166,086 sq km), Greenland is the largest island on Earth (unless you want be annoying and start counting continents as islands). It is geographically a lot closer to North America, but unfortunately associates more with Europe.