I have a shower in my bathroom but I've never used it. I'm a bath person. I believe that shower people are feckless and devoid of moral fibre. Baths are excellent for thinking. Archimedes knew this and so should you. One of the most powerful men in the world - the chairman of the US Federal Reserve Alan Greenspan - has a two-hour power-bath every morning at 5.30 am. Good for him.

I get very depressed seeing people doing sit-ups badly at the gym. I once wrote and modelled for (!) a series of articles on six-packs for Mens Health and I discovered:

(1) There's no point in trying for a six-pack if you're not very slim to start with. You should have a low-fat diet and do lots of fat-burning cardiovascular exercise as well as crunches. If you develop abs under fat, you'll just look fatter.

(2) Don't sit up too far. Just go up a few inches. And imagine you've got an orange under your chin

(3) Make sure you can feel your abs working and not your back.

(4) You've got to be very dedicated, even obsessed, for it to work.

(5) There's no point in doing sit-ups if you're just doing them to lose fat. You can target muscle gain but you can't target fat loss on specific areas. Aerobic exercise is the only way.

Yes...this is all very depressing. But there's no point in wasting your time at the gym, is there?