Research increasingly shows that it’s not always the single “big hit” that causes the most damage, but rather the build-up of sub-concussive impacts over days, weeks, or seasons. These repeated forces can gradually alter brain function and structure, even without obvious symptoms. That’s why tracking cumulative G-force and rotational load is so important: it provides a more complete picture of brain stress, helps identify when an athlete may be nearing a dangerous threshold (like 600G/week), and enables smarter decisions around rest, recovery, and return to play.  

HIT takes a more rigorous approach by monitoring thresholds like 300G over 48 hours, which is a stricter, smarter early-warning system that provides better short-term protection and supports safer cumulative load management, especially for young or vulnerable athletes. 

While many sports associations are finally taking concussion more seriously with improved protocols for diagnosis and return-to-play, they remain largely silent on the issue of cumulative brain load and its impact on long-term health and performance. This gap is especially concerning for children and youth athletes, whose developing brains are more vulnerable to repetitive, sub-concussive impacts that often go undetected. Despite mounting evidence from recent research showing that it is the repeated, low-level head impacts and not just big, obvious concussions that drive neurological decline and increase the risk of conditions like CTE, dementia, and cognitive dysfunction, current policies fail to address this hidden danger.

Elite and recreational athletes alike continue to train and compete under exposure patterns that could be harming them silently, with no structured monitoring or limits in place. This is exactly why HIT is the device every athlete, parent, and coach should have. Not to discourage participation in sport, but to finally bring clarity and control to something previously invisible.

For the first time in the history of wearable technology, HIT allows users to detect, track, and understand the load their brain is receiving in real time. It takes the guesswork out of recovery by showing how impacts accumulate and decay, empowering users to make informed decisions about when to push forward and when to rest. In a sporting world where invisible damage has too often gone unnoticed until it's too late, HIT offers something vital: peace of mind through personalised, science-backed insight.