The term microcephaly simply means "small head" and is used when the head size is less than that of 97% to 99% of the population. In most cases microcephaly also reflects a reduction in the size of the brain. The effects of microcephaly vary considerably, from very mild to profound developmental delays. Microcephaly may be present at birth (congenital) or it may develop in the first few years of life. Some children with microcephaly have multiple diagnoses, including: cerebral palsy, epilepsy, visual impairment and feeding difficulties. Yoga poses (asanas) provide a gentle, yet effective way to stimulate blood circulation and tone the internal organs, which is vital for those who are less physically active. Yogic breathing exercises (pranayama) increase oxygenation of the blood, which strengthens the immune system and aids in cell repair. By oxygenating the blood, pranayama also sends more oxygen to the brain, which helps to improve nerve function and strengthen the central nervous system. When asanas and pranayama are coupled together with the practice of deep relaxation, the benefits are greatly enhanced. With regular Yoga practice, children with microcephaly develop greater body awareness and enhanced cognitive and motor skills. The end result is an overall improvement in their quality of life.