Why I'm doing this

I had always been physically active. I wrestled for nine years throughout school, and when I graduated high school, I was around 155. I spent about seven and a half years in the Army, and during that time, I stayed in the 160 range. When I left the Army and graduated college, I was in the process of looking for a job, planning our wedding, and moving once I found a job, then doing work all around the house during the free time I had. I was looking at myself in the mirror one day, and I noticed I was starting to develop a bit of a belly, so I stepped on the scale, and it said 180. I attributed this to the variables previously mentioned on top of sitting in an office all day. So I joined a local gym and started eating better and lost a little weight, but that lasted about a month. I was still going to the gym but I was half-a**ing it and I slipped back into unhealthy eating habits, so of course I gained the weight back and was once again at 180. I recently came across a picture of myself when I was in the Army at a very healthy 160 and that's when I realized how far negatively I had come. To make matters worse, I have a family history of heart disease. My mom's side of the family has high blood pressure and my dad's side has cholesterol. My blood pressure is still good, though my cholesterol is a little high. The doctor said it's still within an acceptable range, but at the very top of that range. As a matter of fact, my grandfather on my father's side lived the longest of all the males on that side of the family, and he died at 68. And you guessed it, they've all died of heart attacks. Looking at that picture of myself from nearly seven years ago compared to what I was seeing in the mirror presently, I decided it was time for a change. In addition to all of this, my wife is pregnant with our first child and due in September, and I want to live long enough to see him grow old. I started MFP about two weeks ago, and as of this past Sunday, I've lost 1.8 pounds. I travel for work, so I only weigh myself on the weekends. I've also signed up for a half marathon because I've found that if I don't have a specific goal to work towards, I'll find excuses not to run. At least this worked for me three years ago when I ran the Army Ten Miler. After the race was over, I was running here and there, but not regularly.
Anyway, I just wanted to throw my two cents out there as to what is motivating me, and here's to that last 18 pounds. Best of luck to all of you.