A new study is shedding light on why some college athletes may not report concussion symptoms.
Researchers surveyed over 400 NCAA Division One male and female athletes about concussions.
Overall, they were unsure of the possible impacts a concussion would have on their health.
The athletes also considered the impact it could have on the entire team and were also concerned about possible negative reactions from their coaches and teammates.
Experts say the only way treatment can be effective is if athletes report the symptoms which are normally internal such as blurry vision and fatigue.
The athletes played football, soccer, basketball, wrestling, lacrosse or field hockey.