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The facts don't lie: the risk of a concussion is more serious than many realize.

1. Concussions Can't Be Fully Prevented Even With a Helmet

Helmets can't fully prevent concussions because they are caused by the rapid motion of the neck and head, causing the brain to shake within the skull.

2. Half of All Concussions Go Undiagnosed

It's a startling reality that 50% of all concussions are never diagnosed or treated at all.

Don't miss the signs!

Tozuda indicators provide visual, objective information at a glance, ensuring a potential head injury doesn't go undetected. LEARN MORE HERE.

3. Untreated Concussions Can Be Fatal

If left untreated, concussions can lead to serious and permanent damage, and in some cases, even death.

4. Kids and Teens Are at High Risk

An estimated 1.6 to 3.8 million sports-related concussions occur each year in the United States alone. In addition, studies show that the overall concussion rate tends to be higher for boys, but the rate of symptoms and recovery time is worse for girls.

Read more on the Big Brain Blog: Signs of Concussions in Children: What to Watch Out For

Individuals who have suffered a single concussion are 1.5 times more likely to experience a second concussion, raising the risk of permanent brain damage.

5. Symptoms Are Often the Only Indication of a Concussion

90% of concussion patients show no physical signs of injury. It's the symptoms that reveal the extent of the injury. Learn more about the warning signs here: Signs of Concussions in Children

6. Tozuda Lessens The Likelihood Of Second Impact Syndrome

Receiving a second heavy impact while a concussion is present could be fatal. Multiple concussions increase the risk for depression, cognitive impairment, and chronic traumatic encephalopathy (CTE).

Tozuda indicators are designed with players, coaches and parents in mind so everyone knows immediately when an impact is hard enough to get checked out. 


7. A Hematoma Can Form After a Concussion

In some instances, a hematoma, a blood clot that collects in or around the brain, can form after a concussion, leading to serious neurological problems.

8. Timely Medical Care Can Reduce Rehabilitation Period

Seeking medical attention within the first week of injury can reduce the rehabilitation period by weeks or even months.

Read more on the Big Brain Blog: Early Concussion Treatment Reduces Recovery Time

"Seeing your child get hit at a high rate is probably the most nerve-racking part of (football). But the Tozuda Head Impact Indicator is a great tool for us to play smarter and safer. It gives our staff, myself, parents, if we notice someone's indicator is red, we can get them off the field and checked out. Tozuda is an excellent tool that we can use to help us on the sidelines."

-Steve Martel / Football Parent & High School Coach


Tozuda's Indicator will turn from clear to red if hit with excessive force, signaling the need to be evaluated by a medical professional. Our unique calibration process only triggers for potentially dangerous crashes, falls, and hits, allowing for normal use and minor impacts.


Available in settings for youth ages 8-13 and adults 14+ in single units and two-unit packs, as well as 12, 24, and 48-unit hard case team packs.

  • Completely Mechanical Design

  • Lab & Field Tested

  • Detection Without Question

WARNING: This device is intended to measure force of impact and is not a medical device or diagnostic tool by any meaning. Force of impact is one of many indications of potential injury and/or concussion. If any indications of a concussion are present, promptly see a licensed medical doctor for diagnosis and treatment. Use this device as directed and only for the use of measuring force of impact. You should seek medical attention for any injury or concussion that occurs while wearing this device. Tozuda has no control over the activities that may cause injury or concussion and cannot provide any medical advice or treatment.