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Interesting:
Stay 40 years old . . . for the next 40, 50, or 60 years?
May 30, 2018 By Dr. William Davis
Making L. reuteri yogurt
April 7, 2018 By Dr. William Davis
Probiotic Microbes Sustain Youthful Serum Testosterone Levels and Testicular Size in Aging Mice
Theofilos Poutahidis,et al., PLoS One. 2014; 9(1)