According to Linda Carlson, a psychologist who teaches yoga and studies its effect on patients, cancer treatment and defeating it often take precedence over addressing emotional needs, such as what the diagnosis means to a person’s life and plans, family, retirement and future.

Moreover, she said that yoga participants tend to have less tension, sleep better and carry fewer stress hormones.

There is growing evidence that the ancient practice may be a good fit for cancer patients, even during treatment, said Edmonton-based Kerry Courney, the Canada research chair in cancer and exercise.

Likewise, studies on breast cancer survivors have shown that yoga may improve flexibility and arm function after surgery, along with improvements in body image and self-esteem, reduced fatigue and pain control.

The main risk is in overdoing it, such as overstretching areas that might be healing, he said, although there is less concern about injuries from the low-impact exercise.

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