I'm 6'2" (188cm), and I've always been a "big guy". During K-12 school, I was almost always the tallest guy in my class. In addition to being taller than average, I was also fatter than average. Dealing with weight has been a constant battle, sometimes successful, mostly not.
12 or 13 years ago, near my first of two "peak tonnage maxima", I weighed in at about 275 pounds (125kg). I worked crazy hours at Microsoft, lived mostly off vending machine crap and fast food, and was over-stressed at work & at home. It was a recipe for disaster.
One day I saw my general physician due to an ear infection. During the course of the check-in procedure, her assistant took my blood pressure: 150/100.
My doctor freaked out. The ensuing conversation went something like this:
Doctor: "OMG, YOUR BLOOD PRESSURE WILL KILL YOU! WE NEED TO GET YOU ON BP MEDICINE RIGHT NOW." (She actually spoke in all uppercase.)
Me: "I really don't want to take BP medication."
Doctor: "IF YOU DON'T TAKE BP MEDICINE YOU WILL DIE!" (More uppercase tone of voice.)
Me: "Let me make some changes first -- exercise, better diet, etc."
Doctor: "THAT NEVER WORKS, YOU NEED BP MEDICINE!"
I'll never forget her "that never works" line.
This conversation inspired me to make some changes. The first change: I got a new doctor, one who doesn't treat primarily with a prescription pad.
I was reminded of this conversation just today while donating a pint of blood. During the pre-donation screening process, the technician checked my vitals -- pulse, BP, temperature, hemoglobin, etc. Today's BP reading: 108/72
It took a few years for me to really get into exercise and really start eating cleanly (no grains, no refined sugars, tons of leafy & colorful veggies, grass-fed meats, etc) but the results have been more than worthwhile.
BTW -- I'm still 6'2", but I'm down to 214 pounds (97kg).