US obesity epidemic slowing: New finding
The number of US residents who are severely obese shot up by 70 per cent in the past decade or so,though the increase has slowed in more recent years,says a US study.
Between 2000 and 2010,the proportion of US residents who were severely obese at least 45 kg overweight rose from 4 per cent to almost 7 per cent,said the study in the International Journal of Obesity.
The increase showed signs of slowing after 2005,it said. But the bad news is that the severely obese remain the fastest-growing segment of obese Americans,said study leader Roland Sturm,a senior economist at the non-profit RAND Corporation.
Everybodys talking about obesity leveling off, Sturm said. But what tends to get lost in the discussion is the fact that severe obesity,with a body mass index (BMI) of 40 or higher is still rising fast. REUTERS
Breastfeeding lowers risk of breast cancer
Breastfeeding can reduce a womans risk of developing certain types of breast cancers,a new study says. Researchers from Columbia Universitys Mailman School of Public Health found that breastfeeding reduces the risk for estrogen receptor-negative and progesterone receptor-negative breast cancer.
The study examined the association between reproductive risk factors such as the number of children a woman has delivered,breastfeeding and oral contraceptive use and found an increased risk for estrogen receptor- and progesterone receptor-negative breast cancer in women who do not breastfeed.
The results also indicated that having three or more children without breastfeeding was associated with an increased risk for ER/PR-negative breast cancer. PTI