Why is there a sub-health state

1, excessive tension: the first is excessive tension, such as white-collar people we say, a long time in a tense or stressful state. 2, long-term bad mood: the second is some of the long-term impact of some bad mood, such as long-term anxiety, depression or belong to the kind of psychological depression. 3, lack of rest, irregular work and rest: the third aspect, is insufficient rest, or irregular work and rest, such as a long time to stay up late or overtime some people. 4, unclean diet: the fourth aspect is caused by unclean diet, such as smoking for a long time, excessive drinking, and then rest and not enough protection.