HEART RATE VARIABILITY (HRV)

This study tests a 14-day home program called BraW-Day™ that combines brain exercises (like counting backwards) with walking, delivered via a smartphone app. Researchers want to see if doing both tasks together improves thinking, balance, and mood in athletes aged 18-40 who had a…

This study looks at whether listening to music can help lower anxiety in people having surgery for the first time. Researchers will measure heart rate, blood pressure, and anxiety levels in 90 adults. Some will choose their own music, others will listen to a standard playlist, an…

This study tests whether adding a controlled breathing program to a standard exercise routine improves heart and lung function in people with multiple myeloma. Twenty-six adults currently on treatment will take part in a 6-week program. One group will do breathing exercises at ho…

This study looks at whether 5 minutes of slow, paced breathing (called coherence breathing) before a treadmill test can improve how the heart and lungs respond during exercise. Twenty recreationally active adults will try both slow breathing and normal resting before a maximal ex…

This study follows 60 adults with pulmonary hypertension (high blood pressure in the lungs) for 2 years. Researchers will measure breathing problems during sleep and heart rate changes to see how they relate to the disease. No new treatment is given; participants continue their u…