At 52, Mark thought some of the changes he’d experienced were just part of getting older. Like many men, he’d noticed a decline in his energy, fitness and overall health. One issue bothered him more than the rest: erectile dysfunction. It wasn’t something he talked about openly, but it had gradually started affecting his confidence—and his relationship.
“I assumed it was just part of ageing,” he says. “I wasn’t happy about it, but I didn’t think there was much I could do.”
Around the same time, Mark’s doctor encouraged him to pay closer attention to his cardiovascular health. His fitness had slipped over the years, and he was looking for a way to exercise consistently without spending hours in the gym. That’s when he found CAROL Bike.
Initially, the appeal was simple: effective cardio, in less time. Five minutes felt achievable.
Mark started riding 2–3 times a week, building a routine he could actually stick to. Within a few weeks, he noticed some clear benefits—more energy, better stamina, and faster recovery. But a few months in, something else happened.
“The biggest thing was confidence. When you stop worrying about something, it affects every part of your life.”
— Mark, CAROL rider
The quiet problem CAROL helped solve
“I started noticing improvements in the bedroom, too. The changes were gradual at first,” he explains. “But eventually I realized I was experiencing fewer problems and feeling much more confident.”
Erectile dysfunction has many possible causes, but cardiovascular health plays a significant role. Erections depend on healthy blood flow, and research has consistently shown that aerobic exercise can improve erectile function in many men—particularly when ED is linked to inactivity, obesity, high blood pressure or other cardiovascular risk factors.
For Mark, the improvement wasn’t only physical. When the worry lifted, everything else got easier too.
Want to learn more? Research shows a strong connection between cardiovascular health and erectile function. Read our guide to cardio exercise for erectile dysfunction to learn more about the science linking aerobic exercise, blood flow and sexual health.
“Mark” is a pseudonym. For privacy reasons, his name has been changed, and he has asked not to be pictured.
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