It's in the water and I'm not drinking it!

Almost 2 1/2 years ago my brother and SIL had twins; Truman and Amelia. Almost 1 1/2 years ago my best friend had twins; Jonathan and Jordan. Yesterday my other best friend had twins; Morgan and Hunter. I don't know what kind, type, or brand of water they were drinking, but I'm going to stay away from water.period.