Why can some airlines be allowed to charge extra for a seat with more legroom when their standard seats are too bloody cramped for anyone over 'average' height?

My mum said it right when she said the following:

"overweight people are villified the way drink drivers used to be"...

What is a Calorie?
A calorie is a unit of energy. We tend to associate calories with food, but they apply to anything containing energy. For example, a gallon (about 4 liters) of gasoline contains about 31,000,000 calories.
Specifically, a calorie is the amount of energy, or heat, it takes to raise the temperature of 1 gram of water 1 degree Celsius (1.8 degrees Fahrenheit). One calorie is equal to 4.184 joules, a common unit of energy used in the physical sciences.
Most of us think of calories in relation to food, as in "This can of soda has 200 calories." It turns out that the calories on a food package are actually kilocalories (1,000 calories = 1 kilocalorie). The word is sometimes capitalized to show the difference, but usually not. A food calorie contains 4,184 joules. A can of soda containing 200 food calories contains 200,000 regular calories, or 200 kilocalories. A gallon of gasoline contains 31,000 kilocalories.
The same applies to exercise -- when a fitness chart says you burn about 100 calories for every mile you jog, it means 100 kilocalories. For the duration of this article, when we say "calorie," we mean "kilocalorie."

Energy is the ability to do work. ......
Technically, work is done when a force pushes something and the object moves some distance in the direction it’s being pushed (pulled is ok, too). Consider lifting the box of books to a high shelf. If you lift the box at a steady speed, the force you are exerting is just balancing off gravity, the weight of the box, otherwise the box would be accelerating. (Of course, initially you’d have to exert a little bit more force to get it going, and then at the end a little less, as the box comes to rest at the height of the shelf.) It’s obvious that you will have to do twice as much work to raise a box of twice the weight, so the work done is proportional to the force you exert. It’s also clear that the work done depends on how high the shelf is. Putting these together, the definition of work is:

work = force x distance

If it's so shocking - why is the government and NHS running campaigns to encourage people to stay near their ideal weight, eat healthy foods and exercise? Because being overweight is unhealthy? Because obese people make undue demands on health resources? Or just pandering to prejudice?

^^^ or claiming incapacity benefits for an illness brought on by their own laziness, look it is simple you stuff your face with fatty foods day after day you will pile on the pounds. Piling on the pounds causes undue stress to your body, why feel sorry for someone who has caused their own misery and disassociating from the world. With all due respect FAT is not beautifull, i do not see anything beautifull when i look in the mirror and i see my mommy tummy or woman walking around with more spare tyres than Watling tyres! And you can not call three extra midrifs curvy.

Get real FAT is not beautifull no matter how you try to wrap it up or tie a bow around it and neither is extreme skinny. The fact that people are trying to force society to accept fat people as the norm is unacceptable. There is nothing wrong with having a healthy lifestyle or a decent balance. But eating wrong and shoving the wrong kinds of foods into your body and your childrens is WRONG.

And if I have to hear one more woman turn around and say well it is the inside that counts or well i love myself for the way I look. You are so delusional and lying to yourself.