Prevention of mTBI involves general measures such as wearing seat belts, using airbags in cars, and protective equipment such as helmets for high-risk sports. Older people are encouraged to reduce fall risk by keeping floors free of clutter and wearing thin, flat, shoes with hard soles that do not interfere with balance. Protective equipment such as helmets and other headgear and policy changes such as the banning of body checking in youth hockey leagues have been found to reduce the number and severity of<unk> s in athletes. Secondary prevention such as a Return to Play Protocol for an athlete may reduce the risk of repeat<unk> s. New "Head Impact Telemetry System" technology is being placed in helmets to study injury mechanisms and may generate knowledge that will potentially help reduce the risk of<unk> s among American Football players. Educational interventions, such as handouts, videos, workshops, and lectures, can improve<unk>  knowledge of diverse groups, particularly youth athletes and coaches. Strong<unk>  knowledge may be associated with greater recognition of<unk>  symptoms, higher rates of<unk>  reporting behaviors, and reduced body checking-related penalties and injuries, thereby lowering risk of mTBI. Due to the incidence of<unk>  in sport, younger athletes often do not disclose<unk> s and their symptoms. Common reasons for non-disclosure include a lack of awareness of the<unk> , the belief that the<unk>  was not serious enough, and not wanting to leave the game or team due to their injury. Self-reported<unk>  rates among U-20 and elite rugby union players in Ireland are 45–48%, indicating that many<unk> s go unreported. Changes to the rules or enforcing existing rules in sports, such as those against "head-down tackling", or "spearing", which is associated with a high injury rate, may also prevent<unk> s.
Concussion
Cerebellar abiotrophy
Tongue thrust
Sinus lift
Banding 
Sidaction
Lateral release 
Exertion