Metabolic Syndrome: Spotting Risk Factors

## What is metabolic syndrome? Metabolic syndrome is not a disease in its own right, but a cluster of different risk factors that place a strain on the metabolism and the cardiovascular system. When several of these factors occur at the same time, the risk of heart attack, stroke and type 2 diabetes rises considerably more than it would from the individual components alone. Specialists sometimes refer to it as the "deadly quartet", because four features in particular are central: increased abdominal fat, high blood pressure, altered blood lipids and impaired glucose metabolism. This combination usually develops gradually over years – often unnoticed, because the individual readings cause no perceptible symptoms for a long time. ## The criteria at a glance The criteria of the International Diabetes Federation (IDF) are used internationally. According to these, metabolic syndrome is present when an increased waist circumference occurs together with at least two further risk factors. ### Waist circumference as a key feature - Women: 80 cm or more - Men: 94 cm or more (in Europe) So-called visceral fat – fatty tissue in the abdominal cavity around the internal organs – is metabolically active and releases messenger substances that promote inflammatory processes and insulin resistance. ### Further criteria: blood pressure, blood lipids, blood glucose - **Blood pressure:** systolic ≥ 130 mmHg or diastolic ≥ 85 mmHg, or already treated hypertension - **Triglycerides:** ≥ 150 mg/dl or corresponding treatment - **HDL cholesterol ("good" cholesterol):** < 50 mg/dl in women or < 40 mg/dl in men - **Fasting blood glucose:** ≥ 100 mg/dl or already diagnosed type 2 diabetes These values can be determined easily during a medical check-up – usually a blood sample, a blood pressure measurement and measuring the waist circumference are sufficient. ## Why is metabolic syndrome dangerous? The risk factors mentioned do not act in isolation, but reinforce one another. Insulin resistance, in which the body's cells respond less effectively to the hormone insulin, is regarded as the central link. As a result, blood glucose rises, blood lipids shift unfavourably, and blood pressure can also increase. Possible long-term consequences include: - Type 2 diabetes - Atherosclerosis ("hardening of the arteries") - Heart attack and stroke - Non-alcoholic fatty liver disease - Chronic kidney disease - Increased risk of certain cancers Because symptoms are often absent at first, metabolic syndrome frequently remains undetected for a long time. Regular preventive check-ups are all the more important, especially from middle age onwards or when there is a family history. ## Who is particularly at risk? Various factors can increase the risk: - Lack of exercise and a predominantly sedentary lifestyle - An energy-rich, low-fibre diet - Overweight, particularly with fat distribution around the abdomen - Chronic stress and lack of sleep - Smoking and regular alcohol consumption - Genetic predisposition - Increasing age - Hormonal changes, e.g. after the menopause People of normal body weight can also be affected if blood pressure, blood lipids and blood glucose are unfavourable. What matters is not the scales alone, but the interplay of all values. ## Diagnosis: what happens at the medical practice? To identify metabolic syndrome, a brief basic programme is usually carried out: - Taking a medical history and noting familial risks - Measuring blood pressure, body weight and waist circumference - Laboratory tests including fasting blood glucose, blood lipids (HDL, LDL, triglycerides) and, if required, long-term blood glucose (HbA1c) - Assessment of liver values and kidney function - Further investigations if needed, such as ECG or ultrasound On this basis, the individual risk can be assessed and an approach tailored to the personal situation can be discussed. ## Taking action: lifestyle as the central pillar The good news: in many cases, metabolic syndrome can be influenced effectively. Changes to lifestyle can noticeably improve the values and slow progression. Specialist societies recommend a multi-step approach that is ideally implemented over the long term. ### A conscious approach to nutrition - Plenty of vegetables, pulses, fruit and wholegrain products - High-quality plant oils (e.g. olive oil, rapeseed oil) - Fish on a regular basis, moderate meat consumption - Reduce sugar, white-flour products and heavily processed foods - Sufficient water or unsweetened drinks; alcohol only in moderation The Mediterranean diet is considered a particularly well-researched model and can have a favourable effect on blood pressure, blood lipids and blood glucose. ### Integrating more movement into everyday life - At least 150 minutes of moderate endurance activity per week (e.g. brisk walking, cycling, swimming) - Supplement with two sessions of strength training per week - Increase everyday activity: stairs instead of the lift, short distances on foot Regular exercise improves insulin sensitivity, helps with weight management and has a positive effect on the heart and circulation. ### Moderate weight reduction A weight loss of just 5 to 10 per cent of initial body weight can noticeably improve values for blood pressure, blood lipids and blood glucose. Realistic goals that can be maintained over the long term are more useful than short-term diets. ### Further factors to consider - Stopping smoking - Reducing stress, e.g. through relaxation techniques - Ensuring sufficient and restorative sleep - Nurturing social contacts and mental well-being ## When is medication appropriate? If lifestyle measures are not sufficient, or values are already significantly elevated, drug treatment may become necessary. The individual components are addressed in a targeted way – for example with antihypertensive medicines, agents to lower cholesterol or triglycerides, and preparations for blood glucose control. The choice is always made individually and should be reviewed by a doctor on a regular basis. Alongside this, nutrition, exercise and weight management remain important. Medicines can complement established lifestyle measures, but cannot fully replace them. ## Conclusion: detect early, act together Metabolic syndrome usually develops over years and remains unnoticed for a long time. Those who know their own values for blood pressure, blood lipids and blood glucose and have them checked regularly have a good chance of taking action at an early stage. Small but consistent changes in everyday life – combined with medical support – can make a significant contribution to long-term health. If you are unsure whether your risk factors are within a healthy range, it is worth seeking a conversation with your treating doctor. The earlier metabolic syndrome is detected, the better subsequent conditions can be avoided. *This article does not replace medical advice.*

Metabolic Syndrome: When Several Risk Factors Combine