[Madonna] spends six mornings a week completing a mix of workouts and cardiovascular exercises. 'I mix it up - Pilates, gyrotonics, yoga,' says the singer, 48.
'I do it six days a week, with Sundays off. Actually, Sunday is a day of horse-riding. There’s no such thing as a day off.'
Despite her regime, she still has 'fat days' when she worries about her weight.
She tells Elle magazine: 'I run longer on the treadmill and don’t eat as much the next day, so then it evens out, but I’m sure it’s all in my head.'
Madonna admits to one vice: fine wine.
'I’ve had a few wine-tasting sessions and a brief education,' she says.
'I’m particularly fond of red wine - I like Bordeaux.'
The star, mother to Lourdes, 10, Rocco, six, and David, 17 months, says when work and home life clash it upsets her.
'I get stressed if there are too many projects going on at the same time and I feel overwhelmed if I’m trying to meet too many deadlines and spend time with my family,' she says.
'I scream a lot. Sometimes I handle it well, sometimes I don’t. Sometimes it’s nice to go run really fast on a treadmill for half an hour and get out all of my aggression.'
'I’m blessed and grateful that I have the family I have. I am happy.'
She has just designed a collection for high street chain H & M, which goes on sale on 22 March, and says: 'I’ve tried to make a very chic line that’s relatively inexpensive. I try my own designs out on my husband.'
'My daughter is going through a phase of wearing jeans so tight she can’t bend her knees in them.'
'I have a go at her and say, ‘Can’t you wear something else? You have a closet full of clothes and you wear the same pants every day.'
'And please wear a belt because I don’t want to see your butt crack when you bend over'.
I need to get myself on her workout routine. That woman has some damn arms. You can see the M by Madonna H&M collection on the H&M website.