I have to admit, this isn’t what I thought 46 would feel like when I was a kid. I thought I’d feel older.  More “grandparently”.  After all, the average age of a first-time grandparent is 47, and I’ll be having that birthday in 3 short months.  So why do I feel fit, strong, healthy and vital, instead of tired, broken down and fragile, like the grandparents I remember? Strange as it sounds, it’s because I’m lazy. By lazy I mean I like getting the biggest results from the least effort.  For example, I want to enjoy my food — not feel like I’m making a sacrifice every time I eat. …