Many people quit sports, when growing old.
Remaining active in old age is essential for one’s health.
Regular physical activity has many positive sides and there is a way of keeping it after retirement.
My publications are available on http://www.AbeBooks.com, http://www.payot.ch and other Bookstores and Libraries.
Digital versions can be purchased at http://www.barnesandnoble.com and http://www.fnac.com.
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