A study at UCSF led by Elizabeth Fernandez, Elizabeth (entitled "Lifestyle Changes May Lengthen Telomeres, A Measure of Cell Aging”) evaluated lifestyle changes that included a plant-based menu (high in fruits, vegetables and unrefined grains, and low in fat and refined carbohydrates); moderate exercise such as walking 30 minutes a day for six days a week); stress reduction strategies, and social support. The group that made the lifestyle changes reportedly experienced a 'significant' increase in telomere length of approximately ten (10 percent). In general, strategies that strengthen the immune system are also thought to help slow down the shortening of telomeres. That’s just another reason, in my brain’s opinion, for adopting a Longevity Lifestyle. It matters!