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Roller coasters are becoming increasingly intense, attracting millions of riders annually. While some experts worry about the safety of these rides due to the potential for head injuries caused by sudden movements, a recent study suggests otherwise. Two scientists investigated the effects of riding three of the fastest coasters in the US and found that the twists and turns are not fast enough to cause brain injuries. They argue that the reported incidents are few and not proven, considering the massive number of roller coaster rides taken each year.

New roller coasters are getting bigger, faster, and scarier. Millions of kids and adults take these thrill rides each year. Some experts worry that the rides' sudden twists and turns are unsafe. High-speed coasters whip riders' heads back and forth. One report blamed coasters for 13 brain injuries from 1995 to 2000. Another report says some people have nearly died from coaster-related brain injuries. Recently, two scientists set out to learn if coasters really do cause brain injuries. They studied the effects of riding three of the fastest coasters in the United States. The scientists say the coasters' twists and turns are not fast enough to cause brain injuries. "People take more than 1 billion rides on roller coasters each year. The reports on brain injury are few and not proven," said Douglas Smith. He is one of the scientists who did the new study.