BMI does nothing to take into account of people’s activity and muscle levels. I’m also 178cm tall, and currently weigh about 85kg. I feel healthy at around 80kg, and I’d say I wouldn’t want to go lower than 75kg otherwise I’d have to lose a lot of muscle (and I’m not a big guy!). I’m definitely carrying 5kg of excess around with me at the moment, but even at 80kg I look pretty slim, and at 75kg (only just in the “healthy” weight for our height according to BMI) I start to look malnourished!
My problem is my diet. Basically, I like food! Lots of it, and not necessarily the good stuff. Even if I excercise loads these days the weight doesn’t fall off, but perversely if I change my diet the weight does! I like chips, curry, cake and chocolate far too much though sadly!
I can still hop on a bike and churn out a century tomorrow though if I had to, and though I’m never first up the climbs, I’m not usually last either. So whilst I’m not pretending to try and be a racer, does it really matter?
Besides, food is gooooooooood! 😛