Navigation Links
Regular exercise linked to extended menstrual cycles

According to a new study, moderate exercise may extend the time a woman has between her menstrual periods. The research supports one theory on why regular physical activity has been linked to a lower breast cancer risk. //Some evidence suggests that hormonal changes brought on by exercise may help lower the chances of breast cancer developing.

However, the authors of the new study point out, this evidence comes largely from studies of highly athletic women who get few periods or have stopped menstruating altogether. Whether more-moderate exercise affects the menstrual cycle significantly is still unclear.

Dr. Barbara Sternfeld of Kaiser Permanente of Oakland, California and her colleagues looked at two groups of women who had participated in separate US studies. The nearly 550 women in both studies had provided information on their exercise habits and menstrual cycles.

The researchers found that exercise, particularly vigorous activity, was associated with a somewhat longer menstrual cycle or time between periods. In one of the studies, both total physical activity and vigorous activities were tied to women's menstrual cycle length. But the effect was not seen among significantly overweight women.

In the other study, only daily vigorous exercise was tied to menstrual cycle length, and the add-on time was modest. The researchers estimate that, during a given menstrual cycle, an increase of 20 minutes per day of vigorous exercise would lengthen that cycle by about two-tenths of a day. "These findings lend modest support to the hypothesis that moderate levels of physical activity can lengthen the menstrual cycle," Sternfeld and her colleagues conclude.

Relatively moderate activity, they add, may have hormonal effects that may lengthen the menstrual cycle, resulting, over a lifetime, in lower levels or less cyclic fluctuations of estrogen and progesterone. This could be a mechanism by which regular exercise may low er breast cancer risk, according to the researchers. They stress, however, that they do not know whether the possible hormonal effects seen in exercisers in this study may translate into any "meaningful" health effects.


'"/>




Related medicine news :

1. Startling Expose – Physicians Often Have No Regular Source Of Health Car
2. Regular exercise prevents hip fractures
3. Regular Use Of Cocaine Can Impair Brain Functions
4. Experts Insist That Neonatal Herpes Be Reported Regularly
5. Regular light exercise slows down aging of the brain
6. Wounds Heal 25% Faster In Older Adults Who Exercise Regularly
7. Children Need Regular Fluoride Varnishes
8. How Healthy Is A Regular Dose Of Cod Liver Oil?
9. Women Fail to Take Calcium Pills Regularly; High Risk of Bone Fractures
10. Regular Exercise Is Essential To Keep Arteries Healthy
11. Caretakers Don’t Use Blood Pressure Drugs Regularl
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/20/2017)... ... 20, 2017 , ... ATP Science, an Australian-based company focused ... the January ECRM Trade Show in Hilton Head, SC, benefiting from outstanding meetings ... of supplements that keep the body functioning at its peak performance by providing ...
(Date:1/20/2017)... ... January 20, 2017 , ... "TransFlare 4K Mystique comes with 44 colorful ... Pro X," said Christina Austin - CEO of Pixel Film Studios. , TransFlare ... Sensor,TransFlare 4K Mystique lens flare and light leak transitions have a very high-dynamic range ...
(Date:1/20/2017)... , ... January 20, 2017 , ... “The Angel”: ... Lord has set out for each of his children. “The Angel” is the creation ... of Music in New York City, and impassioned writer. , When asked of her ...
(Date:1/20/2017)... ... January 20, 2017 , ... D R Burton Healthcare ... device, was featured in a study indicating superior performance against competitive products in ... of Three Oscillating Positive Expiratory Pressure Devices During Simulated Breathing“ was published in ...
(Date:1/20/2017)... ... ... “Knowledge is God’s Lighthouse”: a moving and colorful collection of prayers that reminds ... published author, Gene Gaapf, a retired truck driver, and a long-time writer, whose published ... high school and have many different titles,” Gaapf mentions about his different works. “I ...
Breaking Medicine News(10 mins):
(Date:1/20/2017)... Research and Markets has announced the ... and Future" report to their offering. ... This research service on the global ... and provides a snapshot of the key participants in the market. ... provided from 2016 to 2020. The market is expected to grow ...
(Date:1/19/2017)... Germany Cataract Surgery Devices Market Outlook ... Cataract Surgery Devices Market Outlook to 2022", provides key ... The report provides value, in millions of US dollars, ... segements - Phacoemulsification Equipment and Ophthalmic Viscoelastic Devices (OVD). ... shares data for each of these market segements, and ...
(Date:1/19/2017)... WASHINGTON , Jan. 19, 2017 Conference Call and ... VNDA ) today announced it will release results for the ... market closes. ... Vanda will host a conference call at 4:30 PM ET on ... quarter and full year 2016 financial results and other corporate activities. ...
Breaking Medicine Technology: