What is mid life crisis?

http://en.wikipedia.org/wiki/Midlife_crisis

Individuals experiencing a mid-life crisis have some of these feelings:

• search of an undefined dream or goal
• a deep sense of remorse for goals not accomplished
• desire to achieve a feeling of youthfulness
• need to spend more time alone or with certain peers

They exhibit some of these behaviors:

• abuse of alcohol
• conspicuous consumption—acquisition of unusual or expensive items such as motorbikes, boats, clothing, sports cars, jewelry, gadgets, tattoos, piercings, etc.
• depression
• paying special attention to physical appearance such as covering baldness, wearing "younger" designer clothes etc.
• entering relationships with younger people