Breastfeeding cuts heart disease AND stroke risk, study shows


Breast is best… for mum too! Breastfeeding cuts heart disease AND stroke risk by up to 15% later in life, study of 1.2m mothers finds

  • Breastfeeding mothers 14% less likely to develop heart disease, a study found
  • And they are 12% less likely to have strokes, a review of 1.2million women found
  • Lead researcher said women need to be made aware of breastfeeding benefits


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Breastfeeding mothers face a smaller risk of heart problems and strokes later in life, research suggests. 

The benefits of breast milk for babies have long been established, with it known to prime their immune system and lower their risk of disease. 

But now researchers in Austria claim breastfeeding may also provide a significant health boost for new mothers.

Eight studies of 1.2million mothers found those who breastfed were 14 per cent less likely to get heart disease than women who never breastfed and stuck to formula.

The review also found they were 12 per cent less likely to suffer a stroke further down the line. 

The team did not reveal the optimal length of time for women to breastfeed to be at reduced risk for heart disease and strokes, but the World Health Organization (WHO) advises women to exclusively breastfeed newborns for six months.

And they did not identify a mechanism thought to be behind the reduced risk among breastfeeding mothers, meaning other lifestyle factors could have played a role. 

Lead researcher Dr Peter Willeit said he hoped more women would choose to breastfeed knowing it could benefit them too.

Dr Willeit, an epidemiologist at Medical University of Innsbruck, said society must ‘encourage and support’ women by creating breastfeeding-friendly work spaces.

Despite endless Government campaigns promoting it, Britain has one of the worst breastfeeding rates in Europe. Just one in 100 new mothers exclusively breastfeed their child for the first six months.

A review by Austrian researchers of eight studies that included 1.2million women found breastfeeding mothers were 14 per cent less likely to develop coronary heart disease, while 12 per cent fewer had strokes

A review by Austrian researchers of eight studies that included 1.2million women found breastfeeding mothers were 14 per cent less likely to develop coronary heart disease, while 12 per cent fewer had strokes

A review by Austrian researchers of eight studies that included 1.2million women found breastfeeding mothers were 14 per cent less likely to develop coronary heart disease, while 12 per cent fewer had strokes

The graph shows the risk of four cardiovascular conditions - cardiovascular disease (top left), coronary heart disease (top right), stroke (bottom left) and dying from cardiovascular disease (bottom right) - among women in relation to how long they breastfed for. The different coloured circles correspond to findings from the different studies examined by the researchers. Anything below the straight horizontal line (which shows the risk for mothers who did not breastfeed) indicates a reduced risk from the conditions. The team found women who breastfed had an 11 per cent reduce risk of developing CVD, 14 per cent reduction in the likelihood of developing CHD, 12 per cent drop in the risk of having a stroke and were 17 per cent less likely to die from CVD

The graph shows the risk of four cardiovascular conditions - cardiovascular disease (top left), coronary heart disease (top right), stroke (bottom left) and dying from cardiovascular disease (bottom right) - among women in relation to how long they breastfed for. The different coloured circles correspond to findings from the different studies examined by the researchers. Anything below the straight horizontal line (which shows the risk for mothers who did not breastfeed) indicates a reduced risk from the conditions. The team found women who breastfed had an 11 per cent reduce risk of developing CVD, 14 per cent reduction in the likelihood of developing CHD, 12 per cent drop in the risk of having a stroke and were 17 per cent less likely to die from CVD

The graph shows the risk of four cardiovascular conditions – cardiovascular disease (top left), coronary heart disease (top right), stroke (bottom left) and dying from cardiovascular disease (bottom right) – among women in relation to how long they breastfed for. The different coloured circles correspond to findings from the different studies examined by the researchers. Anything below the straight horizontal line (which shows the risk for mothers who did not breastfeed) indicates a reduced risk from the conditions. The team found women who breastfed had an 11 per cent reduce risk of developing CVD, 14 per cent reduction in the likelihood of developing CHD, 12 per cent drop in the risk of having a stroke and were 17 per cent less likely to die from CVD 

WHAT ARE THE BENEFITS OF BREASTFEEDING? 

Any amount of breastfeeding is beneficial, but exclusively breastfeeding your baby for six months offers the most benefit for babies and mothers.

Benefits for newborns include:

  • Reduces their risk of infections, with fewer visits to hospital as a result, diarrhoea and vomiting, sudden infant death syndrome, obesity and cardiovascular disease in adulthood
  • Reduce rates of respirtatory, ear, chest and gut infections 
  • May reduce the baby’s chance of getting childhood leukaemia

Benefits for mothers are:

  • Reducing uterus size: after having a baby, the uterus will gradually get smaller, but breastfeeding will help speed this up 
  • Bonding with newborn: breastfeeding can help mothers strengthen the bond with their baby 
  • Protects health: lowers the risk of breast cancer, ovarian cancer, weak bones, diabetes and cardiovascular disease 

Source: NHS

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For comparison, the researchers said a quarter of infants in the US are breastfed for the first six months.

A separate study by Swansea University found eight in 10 mothers give up breastfeeding because of pain, public attitudes and a lack of support.

For youngsters, breastfeeding has been shown to reduce rates of respiratory, ear, chest and gut infections and death from infectious diseases. 

And studies have found mothers who breastfeed are at lower risk from type two diabetes, ovarian cancer and breast cancer. 

But earlier studies linking breastfeeding with reduced rates of heart disease and strokes among mothers have been inconsistent.

For their latest study, researchers examined studies conducted between 1986 and 2009 in Australia, China, Norway, Japan, the US and internationally.

They examined how breastfeeding impacted the mothers’ cardiovascular risk.

More than eight in 10 of the participants had breastfed, meaning the other 18 per cent had never.

Comparing the two groups, mothers who breastfed were 11 per cent less likely to develop cardiovascular disease — conditions related to the heart or blood vessels — and 17 per cent less likely to die from the disease.

They were also 14 per cent less likely to develop coronary heart disease and 12 per cent less likely to have a stroke. 

And those who breastfed for a year or more over the course of their life were less likely to develop cardiovascular disease compared to those who did not breastfeed.

The researchers said their review was limited by the lack of data on women who breastfed for more than two years, as this data would have enabled them to calculate better risk estimates.  

Dr Shelley Miyamoto, a chair at the American Heart Association, said: ‘While the benefits of breastfeeding for infants and children are well established, mothers should be further encouraged to breastfeed their infants knowing that they are improving the health of their child and improving their own health as well

‘Raising awareness regarding the multifaceted benefits of breastfeeding could be particularly helpful to those mothers who are debating breast vs. bottle feeding.

‘It should be particularly empowering for a mother to know that by breastfeeding she is providing the optimal nutrition for her baby while simultaneously lowering her personal risk of heart disease.’ 

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