Metabolic syndrome may be the most common and serious condition you’ve never heard of. (At least that’s what I found out when I asked friends and relatives about it.) Worse, a study published recently in JAMA shows that it’s on the rise.
Let’s start with the name, according to Merriam-Webster:
Metabolic: Relating to the chemical changes in living cells by which energy is provided for vital processes and activities and new material is assimilated
Syndrome: A group of signs and symptoms that occur together and characterize a particular abnormality or condition.
So now you know what metabolic syndrome is, right? Perhaps not. Just knowing what the words in its name mean doesn’t help much in this case.
Metabolic syndrome defined
According to the most widely accepted definition, a person has metabolic syndrome when at least three of the following are present:
- Obesity: A body mass index (BMI) of 30 or above, or a large waistline (greater than 40 inches in men or 35 inches in women)
- Elevated blood triglycerides (a type of fat in the blood): Above 150 mg/dL
- Low HDL (good) cholesterol: Below 40 mg/dL in men or 50 mg/dL in women
- High blood pressure: 130 mmHg or above (systolic pressure), or 85 mmHg or above (diastolic pressure), or previously diagnosed hypertension that requires medication
- Elevated blood sugar: A fasting plasma glucose level of 100 mg/dL or above, or taking diabetes medications.
Why having metabolic syndrome matters
While each component of metabolic syndrome can cause health problems on its own, a combination of them powerfully increases the risk of having
- cardiovascular disease (including heart attacks and stroke)
- liver and kidney disease
- sleep apnea
And this only a partial list. It’s likely we’ll learn about other health risks associated with metabolic syndrome in the future.
Metabolic syndrome is on the rise
A new study explores how common metabolic syndrome is and who is getting it. Researchers analyzed survey data from more than 17,000 people who were representative of the US population in gender, race, and ethnicity. While the overall prevalence of metabolic syndrome increased slightly between 2011 and 2016 — going from 32.5% to 36.9% — it increased significantly among
- women (from 31.7% to 36.6%)
- adults ages 20 to 39 (from 16.2% to 21.3%)
- Asian (from 19.9% to 26.2%) and Hispanic (from 32.9% to 40.4%) adults.
Rates of metabolic syndrome were similar among men and women, but increased with age (from about one in five in young adults to nearly half of all people over 60). Among Hispanic adults 60 and over, nearly 60% had metabolic syndrome.
Perhaps these findings should not be surprising given the connection between obesity and metabolic syndrome,