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根据下列材料请回答题：Anti-Aging Secrets：Four Ways to Stay Young
1 The aging process is not easy for anyone.While some people accept getting older and do everything within their power to keep the mind and body active，others adopt a negative attitude and give in to the effects of aging.However, the key to feeling young is maintaining a young mental state.Moreover, simple lifestyle changes can make you feel years younger.
2 Keeping the mind active is the best medicine against aging. Studies have shown that persons who remain active following retirement live longer.Brainpower and physical fitness go hand—in.hand.When minds are sharpened or active，we are more likely to be physically active，Even if aging results in slight memory loss or a little confusion，brain exercises such as crossword puzzles(填字字谜)can、improve memory.
3 Some persons are naturally introverted(内倾性格的)or shy，which can result in isolation.If you want to live a long life，avoid isolation.Maintaining healthy relationships has lasting benefits.Establishing strong relationships could lower blood pressure，promote relaxation，ease pain，and may even strengthen the immune system(免疫系统).
4 Too much stress can quickly age people.Completely ridding(使摆脱)our lives of stress is impossible.On the other hand，we can adopt simple techniques for better coping with life's problems，including reducing chaos，setting realistic goals，and relaxing.
5 If you think that you are old，you feel old.Try to be cheerful and avoid developing a negative attitude towards life。Sometimes，this involves changing our association，Surrounding yourself with complainers will start to influence your attitude to life.We all experience hardships.Rather than focusing on the unpleasant，reflect on the positive things about life.
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