If you find yourself asking 'does my bum look big in this', it could be good for your health.
A study has found thin people may lower their risk of heart attack, stroke and diabetes by carrying a few extra pounds on their hips and thighs.
One in five people of normal weight, who are 'metabolically unhealthy', can have an even higher risk than some fat people for the killer diseases.
But those who are pear-shaped tend to escape this group, as the bottom and thighs are safer places to store fat on the body.
A German study suggests the old warning 'a moment on the lips, a lifetime on the hips' is almost true.
Fat might not spend a lifetime on the hips, but it is stored there for months, which is better than belly fat – released around two hours after a meal.
A study has found thin people may lower their risk of heart attack, stroke and diabetes by carrying a few extra pounds on their hips and thighs
It means the fat is not transported to the heart and liver, where it can lead to high blood pressure, high blood sugar and a greater risk of illness in later life.
The study's lead author, Dr Norbert Stefan, from the University of Tübingen, said: 'It is better for people of normal weight to be pear-shaped rather than apple-shaped, so that weight is carried on the bottom half of their body rather than around the middle.
'The hips and thighs offer 'safe storage' for fat, stopping it from getting into the blood and reaching the organs.'
The confusion surrounding BMI
Many thin people with a normal body mass index (BMI) believe they are healthy simply because they are not overweight.
But for an unlucky one in five of this group, the risk of death and cardiovascular disease is more than three-fold higher. Despite their normal body size, this can put them in greater danger than some obese people.
Men have long thought their overhanging stomachs were due to their love for beer, it was reported in January.