4. Genetic effects
Yours chances of becoming fat may be set,at least in part,before you were even born.children of boese mothers are much more likely to become obest themselves later in life.Offspring of mice fed a high-fat diet during pregnancy are much more likely to become fat than the offspring of identical mice fed a normal diet. Intriguingly,the effect persists for two or three generations.Grand-children of mice fed a high-fat diet grow up fat even if their own mother is fed normally-so you fate may have been sealed even before you were conceived.
5.A little older…
Some groups of people just happen to be fatter than others.surveys carried out by the US national center for health statisties found that adults aged 40 to 79 were around three times as likely to be obese as younger people.non-white females also tend to fall at the fatter end of the spectreum:Mexican-american women are 30% more likely than white women to be obsess,and black women have twice the risk.
In the US,these groups account for an increasing percentage of the population.between 1970 and 2000 the US population aged 35 to 44 GREw by 43%.the proportion of Hispanic-americans also grew,from under 5% to 12.5% of the population,while the proportion of black Americans increased from 11% to 12.3%.these changes may account in part for the increased prevalence of obesity.
6.mature mums
Mothers around the world are getting older.in the UK,the mean age for aving a frist child is 27.3,compared with 23.7 in 1970 .mean age at frist birth in the US has also increased, rising from 21.4 in 1970 to 24.9 in 2000.
This would be neither here nor there if it were’t for the observation that having an older mother seems to be an independent risk factor for obesi
