Ardha bhekasana is one of many variations on bhujangasana. It stretches the whole upper body, opens the chest, and expands the internal organs and abdomen. It also improves digestion and the posture of the whole body. This asana is especially beneficial for females, as it helps prevent and relieve uterus problems by increasing the blood flow to the uterus and ovaries.
Practicing ardha bhekasana stimulates the svadisthana (spleen or sacral) chakra. This is the center of passion and pleasure, and stimulating it increases an individual's sexual force and energy.
Individuals with limited flexibility can place a bolster under the lower ribs to support the upper body.