It is sayid that women can spend all day shopping and come home with just one thing, but if a man needs, for example, a shirt, he will go to just to one or two shops and buy oneget exactly what he needs.

I tried to put more emphasis on what you are trying to say. And since later on you ask "But is it true?", it makes more sense that this first sentence would not be your own belief, but rather someone else's. That is why I changed it to "It is said". You could also say "It is believed".

So,And for that reason if a man goes shopping with a woman ‘he will suffer'!, apparently, be suffering the whole time.

Your original sentence makes sense to me. I understood that 'he will suffer' is something said by the same people referred to earlier. However, I tried to achieve the same meaning while making the sentence sound more natural.

But is ithat really true?

I know a lot of women who areshop very fast in shopsquickly and some men who can't make decisionsup their mind about what they wish to buy at all!