How dangerous is belly fat?
Belly fat is a serious risk factor for cardiovascular disease, heart failure, and early death, and the risk grows the longer it stays elevated. A combination of a Mediterranean diet and regular exercise is the best-supported approach to reducing it.
Belly fat is not the fat beneath your skin, but the fat deep inside your abdomen, surrounding your organs. That fat is dangerous because it can trigger inflammation and disrupt your metabolism. Even in the absence of other health problems, it is harmful on its own.
Large studies point to serious risks. Among more than 41,000 people, those who carried high levels of belly fat for a long time had almost 3 times the risk of cardiovascular disease, and almost 5 times the risk of dying. The longer belly fat stayed elevated, the greater the risk.
A second large study found that people with a lot of belly fat but no other metabolic problems had up to 87% higher risk of cardiovascular disease. And among nearly 25,000 people, high belly fat was linked to 2.7 times as much heart failure.
Low muscle mass combined with high belly fat is particularly unfavourable. People with the worst ratio had almost 4 times the risk of a fatty liver, a condition in which fat builds up in the liver. Having more muscle therefore partly offsets the harm caused by belly fat.
What helps? A Mediterranean diet combined with at least two hours of exercise per week already led to a measurable reduction in belly fat within 12 weeks in people over 50. Exercise alone, without a dietary change, had a clearly smaller effect.
For those considering medication: weight-loss drugs such as liraglutide, an injection that reduces hunger, reduced belly fat by an average of 12.5% compared with 1.6% in those who did not receive the active drug. However, 47% of users experienced digestive problems, compared with 13% in the comparison group.
All claims are based on studies in which people were followed for years (where an association was observed, not a proven cause) and two studies in people where treatments were tested directly (liraglutide and the Mediterranean diet plus exercise). That belly fat is a causal risk factor has not yet been proven through an intervention study, but the association is large and consistent across multiple large groups of people followed over time.
Is atrial fibrillation dangerous, and what can I do about it?
Atrial fibrillation substantially raises your chances of dying, heart failure, and stroke, and calls for active treatment. Discuss blood thinners for stroke prevention with your doctor, as well as which lifestyle changes make sense in your particular case.
How harmful are trans fats, exactly?
Industrial trans fats are demonstrably harmful to your heart and blood vessels, even in small amounts. Avoid them by checking ingredient lists for 'partially hydrogenated oil'.
Is loud snoring dangerous for my health?
Loud snoring is linked to serious health risks: hardening of the arteries, a higher chance of dying after a heart attack, and dangerous daytime sleepiness. If you snore loudly on a regular basis and feel tired during the day, get it checked by your GP.
Is high blood pressure at night more dangerous than during the day?
High blood pressure at night is more dangerous than high blood pressure during the day. Have a 24-hour measurement taken if you are uncertain about your night-time values, and discuss with your doctor whether your treatment should be adjusted accordingly.
Is taking a daily aspirin smart or dangerous?
Whether a daily aspirin is smart or dangerous depends entirely on your age and medical profile. Take aspirin only on a doctor's advice, and never stop or start it on your own.
How harmful is prolonged stress really for my heart?
Prolonged stress measurably increases your risk of heart and vascular disease, particularly through work-related stress (10–40% extra risk in large population studies). The effect is real, but smaller than that of smoking or high blood pressure.