Lose weight, by thinking smaller
The number one reason diets fail is because they're unattainable and unsustainable. A lot of us want to lose some weight, but aiming too big from the outset - cutting out all your favourite foods and doing an enormous amount of exercise - can just set yourself up for certain failure. So put yourself on the right track by setting sustainable rules for yourself that you really can stick to, and you really will see long-term results. Try halving the amount of nights you eat dessert each week, or just take a quarter off your normal meal size.
Exercise in the real worldAnother common New Year's Resolution that fails is exercising more, resulting in a bold decision to buy an expensive treadmill or year-long gym membership. But just like there is something between no exercise at all and triathlon fitness, you don't need to go crazy simply to trim some fat or gain some muscle tone. Most of us have busy lives and so hectic gym schedules or fanciful weight loss targets are normally unachievable, so start smaller with a program in the home. Buy an introductory yoga DVD, or do some resistance training or light aerobic workouts that you can do at home - or simply promise yourself you'll briskly walk the dog around the block every night after dinner.
Test your health
It may not sound like the sexiest New Year's Resolution you can make, but too many people neglect their health by falling behind in those regular health screenings. The best way to stay healthy is to get expert health about where your health is, so a regular check-up will catch problems sooner, make looking after your health preventative rather than reactive. It'll also constantly remind you that while some of those unhealthy habits are fun, they're not the ticket to a long, healthy life.