| For the data below, I used CDC statistics and occasionally extrapolated a little bit (i.e. if I had a data point for 1990 and one for 1994, I would average them to estimate for 1992).
My Grandparents
My Dad's parents were born in 1920. We don't have obesity data on them until they hit age 55 or so, in 1975. That year, 37.2% of people ages 45-64 were overweight and 18.0% were obese (55.2% were overweight OR obese). Looking at people of all ages in 1975, 48% of men and 32% of women smoked.
In 1990, they were 70. By then 38.5% of people ages 65-74 were overweight and 25.6% were obese (64.1% were overweight OR obese). As this generation aged from 55 to 70, about 9% of them entered the overweight/obese category. That year (for people of all ages), 28% of men and 22.9% of women smoked.
Note here that as they were aging from 55 to 70, some of them were dying. Therefore, the increase in overweight/obesity as a percent of the total population isn't entirely explained by people gaining weight. Part of the explanation could be that some skinny smokers were dying.
My Mom's parents were born in 1930. When they were 55 (in 1985), 36.6% of people ages 45-64 were overweight and 29.5% were obese (a total of 66.1% of the age group was overweight or obese). At that time (for people of all ages), 32.2% of men and 27.9% of women smoked.
So my mom's parents' generation was fatter than my dad's parents' generation at age 55. Fewer people smoked when my mom's parents were 55 than when my dad's parents were that age, but this data doesn't tell you the ages of the smokers, nor does it tell you who used to smoke and quit. Of my four grandparents, two smoked and quit. One smoked well into the '90's until he nearly killed himself from it, and one never smoked. One grandparent who smoked and quit died of lung cancer.
In 2000, my mom's parents were age 70. That year, for people ages 65-74, 37.2% were overweight and 36.3% were obese (a total of 73.5% were overweight or obese). That year (for people of all ages) 25.2% of men and 21.1% of women smoked.
My Parents
How about my parents? They were born around 1950. When they were 24 years old (in 1974), 20.6% of 18-29 year olds were overweight and 7.9% were obese (28.5% were overweight or obese). That year (for people of all ages) 42.8% of men and 32.2% of women smoked.
When they were 37, in 1987, 31.9% were overweight and 22% were obese (53.9% were overweight or obese). That year (for people of all ages) 30.9% of men and 26.5% of women smoked. There probably weren't too many deaths from smoking in this group as they aged from 24 to 37, so the increase from 28.5% overweight/obese to 53.9% overweight/obese is a significant jump.
By the time this bunch hit 55 in 2005, 33.0% were overweight and 40.7% were obese (73.7% overweight or obese). Holy crap. In 2005, for people of all ages, 23.4% of men and 18.3% of women smoked.
People Born in 1965
I don't have any relatives (other than cousins) born around 1965, but it's about halfway between my parents and me so I'm going to look at it. Somebody born in 1965 would have been age 9 in 1974. 4% of children ages 6-11 were overweight (no stats on obese). Hopefully few kids that age were smoking
In 1980, that generation was age 15. That year, 5.0% of teens (ages 12-17) were overweight. That year, 37% of men and 30% of women smoked. So as they aged from 9-15, really very few kids were becoming overweight.
That changes as they get into their twenties. In 1989, when this generation was age 24, 23.1% of people ages 18-29 were overweight and 13.2% were obese (26.3% overweight or obese). That year, 29% of men (of all ages) and 24% of women (of all ages) smoked.
By the time the people born in 1965 reached age 37 (in 2002), 33.4% of people ages 30-44 were overweight and 29.0% were obese (62.4% overweight/obese). That year (for people of all ages), 24.6% of men and 20.0% of women smoked.
My Generation
How about my generation? I was born in 1980. When I was 9, in 1989, 11.3% of children ages 6-11 were overweight (no stats on obese). That's more than double compared to people born in 1965.
When I was 15, in 1995, 12% of my peers (ages 12-17) were overweight (no stats on obesity). Again, that's more than double for the kids born in 1965. That year (for people of all ages) 26.5% of men and 22.2% of women smoked. Of course, my generation was in high school, where we knew everything, and 34.8% of high schoolers smoked then.
By the time I reached 24, in 2004, 26.3% of my generation (people ages 18-29) was overweight and 24.1% were obese (50.4% overweight or obese). That is a HUGE increase over the generation born in 1965 (nearly double!) and about two and a half times as many as my parents' generation. As for smoking, in 2004, for people of all ages, 23.0% of men and 18.7% of women smoked.
My Brother's Generation
How about my brother? He was born in 1985. When he was 3, 7.2% of his generation (kids ages 2-5) were overweight. We don't have data before then to compare it with, but consider that only 4% of kids ages 6-11 were overweight in 1974 (kids born in 1965, twenty years before my brother).
When my bro was age 9, in 1994, 11.3% of kids ages 6-11 were overweight.
In 2000, when my bro was 15, 14.9% of teens (ages 12-17) were overweight (by now the high school smoking rate was down from 34.8% when I was in high school to 31.5%).
This year, my brother would have turned 24. The last year we have data for is 2005-2006 but in those years (Adam would have been 20-21), for people ages 18-29, 27.8% were overweight and 24.3% were obese (52.1% were overweight or obese).
If I Had Kids
What if I had a kid? For children born in 1995 (Ok that would make me a REALLY young mother), at age 3, 9.5% (of kids ages 2-5) were overweight. At age 9, in 2004, 18.8% of kids ages 6-11 were overweight (quadruple from 1974, double from 1984).
If I had a child at age 20, in 2000, by the time my child was 3 years old, 13.9% of kids ages 2-5 were overweight.
It appears to me that the overweight/obesity numbers started going up dramatically between 1980 and 2000. Some age groups saw moderate declines since then (13.9% of 2-5 year olds were overweight in 2003-2004 compared to 11.0% in 2005-2006) but for the most part the numbers are still slowly going up.
Also, note that people of my parents' generation and older came of age when nearly half of men and a third of women smoked. Even if they haven't smoked for decades now, their tobacco history is still going to play a role in their overall health.
Life expectancy has gone up continuously throughout the past century. This is not just due to diet and smoking but also advances in medicine and improved access to health care. If you look at this chart below, even as you go from 1970-1990 you're going to have a pretty big drop in people who smoke at all during their lives (high school smoking was at 27.5% when they began measuring it in 1991, it rose to 36% in 1997 and then began dropping, reaching 20% in 2007... it looks like smoking got a lot cooler to teenagers once the adults all stopped doing it).
Life Expectancy At Birth
| Year | Men | Women | | 1900 | 46 | 48 | | 1970 | 67.1 | 74.7 | | 1980 | 70.0 | 77.4 | | 1990 | 71.8 | 78.9 | | 2000 | 74.3 | 79.7 | | 2005 | 75.2 | 80.4 |
So - what does all of this mean? I don't know. We're living longer and that's great. We're fatter. We smoke less. Obviously there's a health benefit to the decrease in smoking. But what's the effect of our food on health? Could it be that the advances in medicine are slightly outweighing the effects of unhealthy food, so that we're getting sick from our food but we're living longer all the same? I'll see if I can find out. |