People receiving chemotherapy are often plagued by insomnia at night and excessive drowsiness during the day. But a new study in the journal Cancer suggests that yoga can help. Breast cancer patients in the study who practiced at home at least twice a week reported better sleep quality over time, compared to those who practiced less often or not at all. The new research is “another piece of evidence, along with now dozens of studies, showing that incorporating a mind-body practice within conventional cancer care can help decrease side effects for patients,” says lead author Lorenzo Cohen, director of the integrative medicine program at the University of Texas MD Anderson Cancer Center. Other studies have also suggested that yoga reduces sleep disturbances and fatigue in cancer patients, Cohen says, but most have not included control groups or long-term follow-up periods.