E-Bikes and Brain Injury: The Risks, the Recovery, and the Law

E-bikes continue to grow in popularity, allowing one to avoid automobile traffic. But because e-bikes can reach speeds of 20 to 28 mph or more, crashes carry serious consequences, including severe traumatic brain injuries. More so, studies have found that young e-bikers suffer traumatic brain injuries at nearly twice the rate of traditional cyclists (37.8% vs. 19.4%). Notably, only 44% of hospitalized e-bike riders were wearing helmets, and helmetless riders were almost twice as likely to sustain a head injury.

The case of Bella Prince, a Utah teenager who crashed her e-bike into a retaining wall at 40 mph and tumbled 25 feet down a cliff, brought special attention to the e-bike issue in the State. The teen survived because of emergency neurosurgery, but she was left with a severe traumatic brain injury. Horrific stories like Bella’s are driving legislative action. Utah’s HB 381, Electric Mobility Device Amendments, passed both the House and Senate with broad support on February 13, 2026. The bill requires helmets for e-bike riders under 21 and empowers police to impound e-bikes from unsafe riders. (As of March 16, 2026, HB 381 has not been signed into law by the governor.)

Currently, only Alabama, Connecticut, and Massachusetts require helmets for all e-bike riders of every age and class. California, Georgia, Louisiana, Ohio, Tennessee, and Virginia, mandate helmets for all Class 3 e-bike riders, with Class 3 defined as bikes that are pedal-assist up to 28 mph. California also enacted a package including AB 1778 in 2024, which created a Marin County pilot program requiring all Class 2 riders to wear helmets and banning riders under 16 from Class 2 e-bikes. In New York, pending bill S2526 would require helmets for all e-bike and bicycle riders in larger cities, though the same bill has failed in prior years. New Jersey S4834/A6235 abolished the three-class system entirely and reclassified all e-bikes as “motorized bicycles” requiring licensing, registration, insurance, and mandatory helmets beginning in January 2026. However, as of now, no federal e-bike helmet law exists.

Yet e-bikes can also be part of traumatic brain injury recovery. The pedal-assist feature allows TBI survivors with limited stamina, balance issues, or motor challenges to engage in outdoor physical activity, which research links to improved cognitive function and mental health during rehabilitation.

Ultimately, the message is clear: e-bikes offer real benefits, but only when ridden safely.

Counterintuitive TBI Quality of Life Results in Eastern European Nations

Reported by Scientific Reports, on nature.com, and published by the NIH on November 25, 2025, a new study sheds light on the burden of traumatic brain injury in three post-Soviet nations – Armenia, Georgia, and Moldova. This “first of its kind research” reveals that injury severity alone failed to predict patient recovery, challenging conventional clinical assumptions.

The study, led by Diana Dulf and colleagues from Babes-Bolyai University (Romania) in collaboration with universities in all three countries, analyzed 386 adult TBI patients admitted to major trauma hospitals between March and September 2019.  Of these patients, falls accounted for 51% of injuries while road traffic incidents caused nearly 30% of their brain injuries. The study’s most striking discovery was a negative correlation between injury severity and reported quality of life (r = −0.29, p < 0.001). Patients with mild TBI did not consistently report higher quality of life than those with more severe injuries

What makes this research particularly significant is its focus on low and middle-income countries, where TBI occurs more frequently yet receives far less attention than in wealthier nations. Quality of life scores varied notably by country, with Moldova and Armenia showing higher outcomes compared to Georgia. The “disability paradox” that was found suggests that local healthcare systems and rehabilitation support may play a significant and crucial role in recovery and challenges conventional assumptions about recovery trajectories. Age, country of residence, and having additional injuries alongside the brain trauma proved to be stronger predictors of reduced quality of life than injury severity alone.