HEART RATE

This study looked at whether painting roofs with a special reflective coating (cool roofs) can help people in Niue stay healthier during hot weather. 187 adults wore smartwatches to track their heart rate, sleep, and physical activity. The goal was to see if cooler homes lead to …

This study tested a software called Shen.AI that uses a regular camera to measure heart rate, breathing rate, and blood pressure just by analyzing a person's face video. 132 adults participated, and the software's readings were compared to standard medical devices like ECG and bl…

This study tested whether adding acupuncture to standard recovery care helps colon cancer patients recover faster after surgery. 70 adults were split into two groups: one received standard care, the other also got acupuncture sessions. Results showed that the acupuncture group pa…

This study tested whether a 10-day smartphone app-based mindfulness program can improve sleep and reduce stress in healthy adults. 91 participants were randomly assigned to either use the mindfulness app daily or join a waitlist. All wore a ring to track sleep and heart rate. The…

This study tested ways to clean up heart rate data from fitness trackers and create a simple score to measure daily physical activity. It included 138 people: heart patients in rehab, coached athletes, and casual exercisers. Participants wore a Fitbit and a Polar chest strap for …

This study tested three different doses of gentle, painless neck movements (mechanical vagus nerve stimulation) in 128 healthy adults to see how they affect heart rate, balance, pain sensitivity, and digestion. Researchers measured heart rate, balance, and pain responses before a…

This study looked at whether a technique called ischemic preconditioning (briefly restricting blood flow to the arm) can lower the heart's workload after resistance exercise in women aged 60 and older. Thirty physically active women completed two exercise sessions—one with the re…

This study looked at how nicotine pouches affect heart rate and the heart's electrical activity (ECG) in 20 adults who already use nicotine. Participants used a nicotine pouch or a placebo (fake pouch) in random order, and their heart measurements were taken 20 minutes later. The…

This study tested whether using an indoor air purifier changes health metrics like heart rate, sleep, and oxygen levels. 42 healthy adults wore Apple Watches while using a real or fake (sham) air purifier at home. The goal was to see if cleaner air makes a measurable difference i…