A mum has moved millions of people online after sharing a heartbreaking but beautiful video of her young son laughing as he felt the wind blow through his hair again after losing it during cancer treatment.

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The clip, posted by mum Katie, shows her son Lewie Johnston sitting in the car smiling from ear to ear as the breeze rushes through his newly regrown hair during a journey.

The simple moment hit people incredibly hard online.

Katie captioned the emotional video: “Just a boy feeling the wind in his hair after losing it to cancer.”

Since being shared online, the video has exploded across social media, racking up more than 4.3 million views on Instagram and hundreds of thousands of likes from people around the world.

Lewie, now eight years old, was diagnosed with acute lymphoblastic leukaemia when he was just two.

The footage itself was filmed when he was three years old, shortly after chemotherapy treatment caused him to lose his hair.

Katie later appeared alongside Lewie on This Morning, where the pair spoke about the emotional story behind the viral clip and the reality of navigating childhood cancer as a family.

Discussing the moment she filmed the now-famous video, Katie admitted she was overwhelmed with emotion.

She said: “I’m sobbing, because he’s done it from a young age, when he didn’t have his hair, it was heartbreaking. He looked so different, and it’s nice to have that back and just recorded it.”

Katie explained that documenting family moments became incredibly important after Lewie’s diagnosis.

She said: “I’m a person who takes pictures and videos all the time, because you never know what’s around the corner, so I like to capture everything. I didn’t think anything of it for quite a while and then recently saw it, and thought, I’ll just share that, it makes me smile.”

While millions online saw a smiling little boy enjoying the breeze during a car ride, behind the video was years of fear, treatment, and unimaginable emotional strain for the family.

Katie described the moment Lewie was diagnosed as completely life-altering.

She explained: “It’s life-changing, you are thrown into a world that you didn’t know existed. You know it exists, but it’s never your child at the end of the day; it’s always somebody else’s child, so when it is your child, it’s life-changing. You’re thrown into a completely different world.”

Lewie’s diagnosis came during the first lockdown after Katie began noticing worrying symptoms.

She recalled: “The first warning signs were bruising, in places where you wouldn’t typically find bruising to begin with.”

Initially, doctors believed it may have been related to low iron, but things quickly escalated after blood tests at hospital.

Katie remembered: “We walked into the hospital, and now I know that they knew. They just looked at him, and they knew he was head-to-toe.”

She added: “He had walked that morning past the door frame and had slightly bumped his head, very slightly, which came out with a big bruise. It said leukemia, and I thought, no, absolutely not him. It didn’t cross my mind until it unfortunately was.”

The treatment process was brutally difficult for Lewie and the family.

Katie explained how steroids caused dramatic physical changes, while the emotional toll became almost unbearable at times.

She said: “He couldn’t walk for about two months, he was playing on the floor with his siblings, I had to pick him up because he couldn’t get up. He went up three ages in sizes, obviously lost his hair, just lost him.”

She continued: “I kept thinking, ‘I’ve lost him,’ he’s here, but he’s not here. I was grieving for him, but he was still alive; it was so surreal how he’d changed so quickly.”

Despite everything, Katie praised the hospital staff who helped guide the family through the darkest moments.

She said: “It’s a tough job, you have to be tough as a parent and obviously as a doctor, nurse or a play specialist. They’re there to distract, they do their best and sometimes get the brunt of it, and they just carry on. It never affects them, and it’s just so lovely because we know that if we do have a long day, like a lumber puncture day, we know they’re there to help us as well.”

Tragically, Lewie is currently undergoing treatment again following news of his relapse.

He now takes oral chemotherapy every evening and receives monthly lumbar punctures as part of his ongoing care, with treatment currently expected to continue until next February.

Following the relapse, the family launched a GoFundMe appeal to help support them through the next stage of treatment.

The page reads: “I never imagined I’d ever have to say this, but unfortunately our Lewie has leukaemia again, it’s come back! We are absolutely heartbroken and devastated, doesn’t come close!”

It continues: “We will know more going forward, but it’s highly likely he will need a bone marrow transplant. This means being in isolation, so split from the family AGAIN.”

As of this writing, £8,450 has been raised of the £10,000 target.

Let’s all just hope that the target is hit and Lewie can beat cancer and once again feel the joy he brought so many of us. What an incredible young man! We wish Katie and Lewie all the best.

Featured image credit: TikTok/@katiejohnston07 (screenshot)