CORTISOL

This study tests whether watching a short video about anesthesia and surgery before an elective C-section can lower anxiety and stress hormones (cortisol) more than standard verbal instructions from a doctor. 140 pregnant women will be randomly assigned to either video or verbal …

This completed trial tested PeptiSleep, a plant-based supplement made from rice protein, to see if it improves sleep quality in healthy adults. 120 participants took either PeptiSleep or a placebo daily for 6 weeks while wearing a sleep tracker and completing surveys. The study m…

This study looked at whether a nerve block called an erector spinae plane block can reduce pain and stress after sleeve gastrectomy surgery. Sixty patients were randomly assigned to receive the block or not, and their pain scores, painkiller use, and stress markers were compared.…

This study looked at whether adding verbal cues from a therapist during exercise helps breast cancer survivors on radiation therapy. 34 women did a 12-week exercise program with or without verbal guidance. Researchers measured shoulder movement, fatigue, and stress levels to see …

This study looked at whether back massage after open heart surgery can help with pain, sleep, and stress. 96 adults who had elective open heart surgery were included. The massage group received three 30-minute back massages on the first day after surgery. Researchers measured pai…

This study looks at how team athletes' bodies respond to short, intense cycling and longer, moderate cycling. Researchers measure two key substances in saliva: cortisol (a stress hormone) and interleukin-6 (an immune signal). The goal is to see if athletes with different fitness …

This study tested a postbiotic supplement in 76 healthy adults to see if it improves gut bacteria, digestion, stress, and other health markers. Participants took the supplement or a placebo for 4 weeks. The goal was to gather data on how the supplement affects the body, not to tr…