Heart Attack and Cancer Risk: Two Everyday Habits Just Got a Closer Look
Two things most of us don’t think twice about, a stick of sugar-free gum and a steaming cup of tea, just landed in the middle of separate scientific investigations into heart attack and cancer risk. Neither study is about some rare, exotic substance. Both are about stuff sitting in kitchens and handbags right now.
Let’s start with the numbers driving the concern in the first place. A cardiac event happens somewhere in the UK roughly every five minutes, and around 403,000 people are diagnosed with cancer there every year. Against that backdrop, two research teams, one in Berlin, one in Oxford, went looking for everyday triggers hiding in plain sight.
Xylitol and the Heart Attack Connection
Dr. Marco Witkowski from Berlin’s Charité University Hospital presented findings at this year’s European Society of Cardiology Congress that add real weight to the heart attack and cancer risk conversation. His focus was xylitol, a sugar alcohol used as a low-calorie sweetener in chewing gum, baked goods, and even toothpaste.
Earlier research from his team had already shown xylitol could boost platelets’ ability to form clots. This new study went further, pulling data from nearly 18,000 participants across North America and Europe, most around 60 years old. The result: people with the highest xylitol levels in their blood had a noticeably higher chance of a heart attack or stroke than those with the lowest levels.
Witkowski didn’t sugarcoat it (no pun intended): long-term findings show how little is actually understood about xylitol’s cardiovascular safety in the general population. Dan Atar of the European Society of Cardiology added that while artificial sweeteners carry favorable safety ratings from regulators, this observational data points to a real long-term downside.
Stanley Hazen, who chairs cardiovascular research at the Cleveland Clinic, has been sounding a similar alarm for a while now. His team’s own research ties both xylitol and erythritol to platelet changes linked with clotting events. If you want the fuller picture straight from his team, Cleveland Clinic has a plain-language explainer on the dangers of xylitol and other sugar alcohols that’s genuinely useful before your next grocery run.
Hot Drinks and a Different Kind of Cancer Risk
The second half of this heart attack and cancer risk story comes from Dr. Keren Papier, a senior nutritional epidemiologist at the University of Oxford. Her study, published in the International Journal of Cancer, looked at something almost nobody questions: how hot people like their tea and coffee.
The finding is hard to ignore. Drinking scorching-hot tea or coffee was linked to triple the risk of oesophageal squamous cell carcinoma (SCC), a specific type of cancer affecting the gullet. Interestingly, the same link didn’t show up for the other main type of oesophageal cancer, adenocarcinoma, which suggests heat exposure itself, not just what’s in the drink, is doing the damage.
The numbers get more specific from there. After adjusting for drink temperature, people who had six or more hot drinks a day showed a 71% jump in SCC risk compared to those having fewer than six. That data came from close to 980,000 UK adults, making it one of the largest studies ever to look at this question.
For more background on how oesophageal cancer risk actually works and why temperature matters so much, Cancer Research UK put together a clear breakdown of the link between hot drinks and this type of cancer that’s worth reading before you reach for your next brew.
So What Should You Actually Do With This?
Neither study is telling anyone to panic. A single piece of sugar-free gum isn’t going to trigger a heart attack, and one hot coffee won’t cause cancer. What both pieces of research are pointing toward is cumulative exposure over years, not a single choice on a single day.
Simple, low-effort changes seem to matter most here. Letting a hot drink cool for a few minutes before sipping costs nothing and directly addresses the mechanism researchers believe is behind the oesophageal cancer risk. Checking labels for xylitol and erythritol, especially in “sugar-free” or “keto” products, gives people more control over how much they’re consuming without having to give up sweet treats entirely.
For a deeper dive into how sugar alcohols interact with the cardiovascular system at a cellular level, the NIH published a solid summary of how xylitol may affect cardiovascular health that lays out the platelet research in plain terms.
Ultimately, this heart attack and cancer risk research isn’t asking anyone to overhaul their entire diet overnight. It’s asking for a bit more awareness around two habits so common that most people never think to question them, until now.
