A study at the University of Iowa found that children of parents who are professionals heard an average of 2,100 words each hour, while those of working - class parents heard 1,200 words and those of parents on welfare, only 600.
गर्दन और कंधों से तनाव दूर करने के लिए वह सही मुद्रा का प्रोत्साहन देती है ।