Older women who are physically active have lower levels of estrogen and its breakdown products in their bodies, providing insights that may help explain why exercise may reduce breast cancer risk. Cher Dallal, from the US National Cancer Institute (Maryland, USA), and colleagues evaluated 540 Polish women, ages 40 to 74 years, who were enrolled as healthy control patients in the NCI Polish Breast Cancer Study. None of the patients was on hormone therapy. The women engaged in a range of physical activity. For seven days, they wore an accelerometer on their waist while awake, which measured overall activity. The women also collected 12-hour urine samples. The researchers measured the hormones estradiol and estrone, along with different estrogen breakdown products, in the urine; they found that physical activity was associated with lower levels of the main estrogens, and that activity also was associated with increased metabolism of some of the breakdown products. Writing that: “Our findings with accelerometer-measured physical activity are consistent with prior studies reporting a reduction in estrogen levels with increased activity,” the study authors submit that: “our results suggest that increased physical activity may lower endogenous estrogens by increasing hydroxylation, and subsequent metabolism, of estrogens.”
Cher M. Dallal, Louise A. Brinton, Charles E. Matthews, Ruth Pfeiffer, Terryl Hartman, Gretchen L. Gierach, et al. “Is accelerometer-measured physical activity associated with urinary estrogens and estrogen metabolites among postmenopausal women?” [Abstract 2519/8]. Presented at American Association for Cancer Research 2013 Annual Meeting, 9 April 2013.
Post-workout aches and pains can be effectively relieved by a short bout of light exercise.
American Cancer Society urges that a coordinated effort to change individual health behaviors could prevent much of the suffering and death from cancer.
The indigestible carbohydrate content in barley kernels may increase satiety hormones and reduce subsequent energy intake.
Netherlands researchers suggest that men who have higher levels of the mineral selenium may be at a lower risk of developing advanced prostate cancer.
US National Cancer Institute scientists elucidate clues as to how exercise may be protective.
Generational shifts in metabolic risk factors suggest that today’s adults are less healthy than their predecessors.
Daily supplements of soluble fiber help to improve metabolic and cardiovascular measures, among diabetics
Omega-3 fatty acids and their metabolite products may slow or stop the proliferation of triple-negative breast cancer cells by as much as 90%
Rich in flavonoids, black tea may help to reduce variability in nighttime blood pressure.
Higher levels of mercury exposure – such as that which may occur from consumption of fish and shellfish – may increase the risks for type 2 diabetes.
Higher dietary intake of pyridoxine (Vitamin B6) associates with reduced risk of hip fracture, among women.
DHEA (dehydroepiandrosterone), a hormone secreted by the adrenal glands, helps to alleviate menopausal symptoms.
Study results suggest that regularly taking certain supplements, including multivitamins, folic acid, iron, and copper, may increase the risk of death in older
Engaging in regular physical activity is associated with less decline in cognitive function in older adults.
UK study reveals that tall women may be at greater overall risk for cancer, with significant increases in risk for each four-inch increase in height.
Among older women, indoor air pollution associates with increased blood pressure.
Pre-menopausal women with the highest average intakes of folate from the diet are at a 40% reduced risk of developing breast cancer.
Among older women, Vitamin D supplementation extends longevity.
Daily physical activity, a low-fat whole-grain diet, low BMI, and other healthy behaviors significantly reduce a woman’s risk of sudden cardiac death.
Women who take supplements of vitamin D and calcium may be at a reduced risk of developing skin cancer.
Tip #156 - Social Ties May Slow Memory Decline
Staying connected with family and friends can beneficially impact memory as we age. Harvard School of Public Health (Massachusetts, USA) researchers studied 16,638 men and women, ages 50 and over, to assess the impact of social integration on changes in memory during a six-year period. The team found that the study participants with high social integration at the start of the study encountered slower rates of memory decline over time, as compared to the less socially integrated subjects. Memory among the least socially integrated declined at twice the rate as that of the most socially integrated.
Among men, social activity in midlife may slash the risk of dementia. Researchers from Johns Hopkins Bloomberg School of Public Health (Maryland, USA) studied 147 male twin pairs for 28 years. Among the twins, those who participated in social activities at home, visited with family and friends, and engaged in club activities and hobbies were less apt to develop dementia.
Be sure to stay in-touch with loved ones on a regular basis. Your network of family and friends not only provides moral support and encouragement, it might also help delay a declining memory.