I try so hard to eat a healthy diet.  It's just so hard with all of the unhealthy options available.
I try to eat a healthy diet but I fail sometimes. I just want to improve my health.
I am trying to improve my health too.  It's not bad, but there is always room for improvement.
Nutrition Guides make it easy but I think marketing and addicting foods make it hard for people. 
I agree.  I also am trying to increase my amount of daily physical activity.  It's hard though, there's only so many hours in a day.
Exercise
Exercise is any bodily activity that enhances or maintains physical fitness and overall health and wellness. It is performed for various reasons, to aid growth and improve strength, preventing aging, developing muscles and the cardiovascular system, honing athletic skills, weight loss or maintenance, improving health and also for enjoyment. Many individuals choose to exercise outdoors where they can congregate in groups, socialize, and enhance well-being.
Classification.
Physical exercises are generally grouped into three types, depending on the overall effect they have
, Sakuraba has stated through an interpreter that "it doesn't matter if they [the opponent] use a pill or medicine to get bigger or smaller, I just train hard, eat healthy, fight at my weight and try my best to beat them. For me it doesn't matter if they use drugs, but I would not use it. I'm sure it's bad if they use it to win."
About his proneness to fight outside his weight class, Sakuraba declared "the more impossible the