MENSTRUAL CYCLE

This study looks at different ways to track ovulation, like checking cervical mucus, using urine tests, and measuring body temperature. Thirty women who already use the Premom app will track their cycles for three months. The goal is to see which combination of signs gives the mo…

This study looks at whether women need different amounts of the essential amino acid phenylalanine during their menstrual cycle. Current recommendations are based on studies in men and may not fit women's changing hormone levels. Researchers will use special diets and breath test…

This study looks for chemical changes in the blood that may be linked to premenstrual dysphoric disorder (PMDD), a severe form of PMS. Researchers will collect blood samples and track mood changes across the menstrual cycle in 500 women—some with PMDD and some without. The goal i…

This study is observing 110 women aged 18-45 having laparoscopic gynecologic surgery to see if the phase of their menstrual cycle affects the diameter of the optic nerve sheath, which is a measure of pressure inside the skull. Researchers will also check for nausea, vomiting, and…

This study looks at how the menstrual cycle and birth control pills influence strength, hydration, and energy balance in female athletes. Researchers will track 40 athletes (24 with natural cycles and 16 on the pill) across different phases of their cycle. The goal is to better u…

This study looks at how antipsychotic drugs change the way the brain responds to insulin in women, and whether this varies with menstrual cycle phase. Fifteen healthy women will receive the antipsychotic olanzapine or a placebo, plus insulin nasal spray, and undergo MRI scans. Th…

This study looks at whether planning workouts around menstrual cycle phases improves fitness in female athletes. About 111 healthy women who exercise regularly will be placed into different training groups for 12 weeks. Researchers will measure changes in aerobic fitness, muscle …

This study looks at how natural menstrual cycles and birth control pills change the way women build muscle after weightlifting. Researchers will measure muscle protein synthesis in 20 active women aged 18-40. The goal is to provide better training and nutrition advice for women.

This study is observing 60 women to see if inserting a hormone-releasing IUD at different points in the menstrual cycle changes the chance of developing ovarian cysts. Participants will have ultrasounds at the start and at 3, 6, and 12 months to check for cysts. The goal is to fi…

This study watches 60 women aged 18-40 who are having nose surgery to see if their menstrual cycle phase changes how much nausea or vomiting they have after the operation. Researchers will also check if a drug called sugammadex, used during anesthesia, plays a role. No extra trea…

This study watches 120 women having gallbladder surgery to see if their menstrual phase or menopause changes how much anesthesia they need and how sick they feel afterward. Researchers measure hormone levels and track nausea and vomiting. The goal is to learn more, not to test a …

This study looks at how different phases of the menstrual cycle affect walking patterns, pelvic movement, and sleep quality in healthy women aged 18 to 35 with regular cycles. Researchers will measure these factors during the early follicular, ovulation, and luteal phases using a…