Why do successful people wake up early in the morning?

Before morning sunrise may arise, most people may feel impossible, but many successful businessmen and leaders believe that coming out of bed at early in the morning, due to increased mental and physical abilities makes, this is in a new report. According to the Wall Street Journal report, early morning, a person's mentality increases physical performance because interference is unlikely to occur. Time people do not see social media, while no one is available for SMS or messaging so early in the morning.
According to the report, at this time can be used for work-free activities like exercise, personal care, personal development, spiritual development and family. The report further says that our body is more dynamic at the beginning of the day, While mind is also more alert, which increases mental and physical performance. Many successful people including Apple's CEO Tim Cook, as a result of the announcement of their success, have risen early in the morning. It is believed that 1400 years ago Islamic teachings were also prompted to move early in the morning. Science also confirmed that however